51Tracking Order Tracking

https://www.51tracking.com/china-post-tracking-en

Enter a tracking number that can be used for shipment tracking to check the logistics history of your 51Tracking order.

About 51tracking

51tracking is best treated as a shipment tracking website, not as a retailer, marketplace, DTC brand, payment provider, or carrier. The provided official page is a China Post tracking page at https://www.51tracking.com/china-post-tracking-en, which means 51tracking can help display tracking information for supported tracking numbers but does not own the purchase, shipment, return, refund, or delivery network.

51tracking entity overview

Field	Verified summary
Official name	51tracking
Official website	https://www.51tracking.com/china-post-tracking-en
Brand type	Parcel tracking information website; not confirmed as a shopping merchant.
Primary order ownership	The original store, marketplace, seller, payment channel, and carrier own the order and shipment decisions.

Brand Entity & Order Ownership

Entity / order party

Role in the order

51tracking

Provides a tracking page experience for a tracking number, such as China Post tracking.

View all details for 51tracking

What it controls	The website interface and information displayed from available tracking data.
What it cannot control	Order creation, seller dispatch, carrier scanning, address changes, delivery attempts, customs decisions, returns, or refunds.
Why it matters to tracking	Users should not confuse a tracking website with the merchant or carrier responsible for resolving order problems.

Buyer account

Exists with the original store or marketplace, not necessarily with 51tracking.

View all details for buyer account

What it controls	Order history, saved address, payment records, messages, return requests, and support cases at the merchant platform.
What it cannot control	Carrier scans after handoff or 51tracking display availability.
Why it matters to tracking	The account or order email is usually where the carrier tracking number is first found.

Seller or merchant

Receives the purchase and decides when and how to ship, unless a platform fulfillment service is used.

View all details for seller or merchant

What it controls	Order processing, item availability, package handoff, tracking number upload, cancellation, replacement, and return authorization.
What it cannot control	Every carrier transit event after acceptance or customs release timing.
Why it matters to tracking	If there is no tracking number or the wrong tracking was uploaded, the merchant is usually the first escalation point.

Fulfillment party

The warehouse, dropshipper, seller facility, or platform fulfillment center that prepares the parcel.

View all details for fulfillment party

What it controls	Picking, packing, label creation, handoff timing, and whether one order is split into multiple packages.
What it cannot control	Final delivery once the parcel is with the carrier.
Why it matters to tracking	Label created does not always mean the carrier has physically received the parcel.

Carrier/last-mile carrier

Moves the parcel and posts shipment scans when available.

View all details for carrier or last-mile carrier

What it controls	Acceptance scan, transit scans, customs handoff scans when shared, delivery attempt, pickup availability, and delivered scan.
What it cannot control	Merchant refund approval, product replacement, or payment reversal.
Why it matters to tracking	The carrier tracking number is the identifier most likely to work on 17TRACK.

Payment/refund channel

Processes charges and refunds according to the original merchant or marketplace decision.

View all details for payment or refund channel

What it controls	Payment settlement, refund posting, chargeback or dispute workflows when applicable.
What it cannot control	Carrier location scans or 51tracking page content.
Why it matters to tracking	A returned parcel scan is evidence for a refund request, but it is not the same as refund approval.

17TRACK relationship

17TRACK is an independent tracking platform and is not affiliated with 51tracking.

View all details for 17TRACK relationship

What it controls	Tracking lookup tools for supported carrier tracking numbers and API access for tracking data registration.
What it cannot control	Private merchant order details, address edits, seller contact, delivery guarantees, return approval, or refunds.
Why it matters to tracking	17TRACK can help interpret available shipment events, but order service must be handled by the merchant, seller, carrier, or payment channel.

Quick Answer

To track a package associated with 51tracking, use the carrier tracking number shown by your original store, marketplace, seller, order email, or shipping notification. If the tracking number is a carrier number, you can check it on the carrier website, on 51tracking when supported, or on 17TRACK.

If you only have an order number, invoice number, payment ID, or marketplace order ID, first return to the merchant’s order details or email to find the carrier tracking number. 17TRACK can help track available carrier tracking numbers and may detect the carrier, but it cannot see private order details, change an address, cancel an order, contact a seller, or issue a refund.

Quick tracking decision table

Situation	Best next step
You have a carrier tracking number	Enter it on 17TRACK, 51tracking, or the carrier website.
You only have an order number	Open the merchant order page or shipping email and look for the shipment tracking number.
There is no tracking yet	Check whether the order is still processing or whether the seller has only created a label.
The item is late or missing	Use the latest carrier scan as evidence, then contact the seller, marketplace, or carrier according to the issue.

How to Track 51tracking Orders

Because 51tracking is not confirmed as a merchant order system, the reliable path is to start with the store or marketplace where you purchased the item, find the carrier tracking number, and then use that number on 51tracking, 17TRACK, or the carrier site.

Tracking Path Comparison

Tracking path

Use when

Official store account / Your Orders

You bought the item from a retailer or marketplace and need the shipment details.

View all details for official store account tracking

Identifier needed	Merchant login, order number, email, or phone depending on the store.
What you can see	Order status, shipment status, seller name, carrier, tracking number, split shipments, return links, and support options when available.
Best next step	Open the specific order, choose shipment or tracking details, copy the carrier tracking number, and check whether the order has multiple packages.
Important limitation	Order status may update before carrier scans appear; a label does not always prove carrier possession.

Official order email or SMS

You checked out as a guest, received a shipping notice, or cannot sign in.

View all details for order email or SMS tracking

Identifier needed	Order confirmation email, shipping email, phone message, or order lookup link.
What you can see	Carrier link, tracking number, estimated delivery, shipped items, and sometimes return information.
Best next step	Search your inbox for the merchant name, order number, tracking, shipped, or delivery terms.
Important limitation	Email links may require the purchaser’s account or email verification for privacy.

51tracking

You want to check a supported tracking number, such as on the China Post tracking page.

View all details for 51tracking lookup

Identifier needed	Carrier tracking number, not a private store order number.
What you can see	Available public or carrier-shared shipment events when the number and carrier are supported.
Best next step	Compare the latest event with the seller’s order page if the status looks incomplete.
Important limitation	51tracking cannot approve refunds, correct merchant uploads, or force carrier scans.

17TRACK

You need an independent multi-carrier tracking view for a carrier tracking number.

View all details for 17TRACK lookup

Identifier needed	Carrier tracking number, return tracking number, or shipment number supported by a carrier.
What you can see	Available tracking events, carrier detection when possible, origin and destination events when provided.
Best next step	Use the latest event to decide whether to wait, contact the carrier, or escalate to the seller.
Important limitation	17TRACK cannot access merchant-only order records or update shipment handling.

Carrier website

You know the carrier and need proof of delivery, delivery options, or service-specific help.

View all details for carrier website tracking

Identifier needed	Carrier tracking number and sometimes destination postal code or phone verification.
What you can see	Carrier scans, delivery attempt notes, pickup instructions, proof of delivery, or local depot information when offered.
Best next step	Use carrier tools for reschedule or pickup if available; use merchant support for product, refund, or replacement issues.
Important limitation	The carrier usually cannot approve merchant refunds or change item contents.

Seller or marketplace message center

Tracking is missing, wrong, not updating after dispatch, or the seller controls fulfillment.

View all details for seller or marketplace messages

Identifier needed	Marketplace order ID, seller name, order number, item listing, and screenshots of tracking events.
What you can see	Seller explanations, corrected tracking, replacement options, dispute links, or platform policy routes.
Best next step	Ask for the exact carrier tracking number and confirmation that the parcel was handed to the carrier.
Important limitation	Seller replies do not replace carrier acceptance scans.

Guest/gift order route

Someone else bought the item, or the store allows guest order lookup.

View all details for guest or gift order tracking

Identifier needed	Gift tracking link, order email, purchaser help, or guest order lookup credentials required by the original store.
What you can see	Usually limited shipment progress; pricing, billing, or refund information may be hidden.
Best next step	Ask the purchaser for the carrier tracking number or authorized order link if privacy rules block access.
Important limitation	51tracking and 17TRACK cannot bypass merchant privacy controls.

Pro Tip: If an order appears shipped but no scans appear, separate three events: label created, seller handoff, and carrier acceptance. Only the carrier acceptance scan strongly indicates the parcel has entered the transport network.

Order Numbers, Tracking Numbers and Where to Find Them

The most important distinction is simple: an order number identifies the purchase inside the merchant’s system, while a tracking number identifies a shipment inside a carrier or tracking network. 17TRACK normally needs the carrier tracking number, not the merchant order number.

Identifier & Tracking Number Guide

Identifier type

Where users find it

Brand order number

Order confirmation email, store account, marketplace order page, invoice, or receipt.

View all details for brand order number

Looks like / example	ORDER-#### or 123-#######-#######; examples are masked and not real user data.
Who issues it	The original merchant or marketplace.
Can 17TRACK use it?	Usually no; use it to find the shipment tracking number in the merchant account.
What it can and cannot prove	It proves a purchase record in the merchant system, but not carrier acceptance.

Shipment/tracking number

Shipping email, order details, seller message, shipping label, or return label.

View all details for shipment or tracking number

Looks like / example	LP#########CN, RR#########CN, or another masked carrier format depending on the carrier.
Who issues it	The carrier, fulfillment provider, postal operator, or seller shipping platform.
Can 17TRACK use it?	Yes, when the carrier and number are supported and events are available.
What it can and cannot prove	It can show shipment events; it cannot prove refund approval or item condition.

Carrier tracking number

Carrier link in the merchant order page or the carrier’s own notification.

View all details for carrier tracking number

Looks like / example	Format varies by postal or courier network; do not assume one universal 51tracking format.
Who issues it	The carrier or shipping system used by the seller or fulfillment party.
Can 17TRACK use it?	Usually yes if it is a recognized tracking number and data is available.
What it can and cannot prove	It proves carrier-level shipment handling when scans exist; it does not prove the correct product was packed.

Internal delivery ID

Some platforms use internal IDs, but no 51tracking-specific internal order ID is confirmed from the provided official page.

View all details for internal delivery ID

Looks like / example	Platform-specific masked IDs such as INT-########, if used by the original merchant.
Who issues it	The original marketplace, delivery platform, or merchant system.
Can 17TRACK use it?	Not unless it is also supported as a carrier tracking number.
What it can and cannot prove	It may identify an internal shipment record, but it may not be visible to public carrier tracking tools.

Return tracking number

Return label, return confirmation email, return center, or carrier receipt after drop-off.

View all details for return tracking number

Looks like / example	Carrier-dependent masked number; may differ from the outbound tracking number.
Who issues it	The return carrier, merchant return system, or marketplace return center.
Can 17TRACK use it?	Yes when it is a supported carrier tracking number.
What it can and cannot prove	It shows return movement; it does not confirm inspection completion or refund posting.

Return authorization/RMA

Return portal, support email, marketplace return case, or merchant message center.

View all details for return authorization or RMA

Looks like / example	RMA-####### or RETURN-####; masked examples only.
Who issues it	The merchant, marketplace, or seller support system.
Can 17TRACK use it?	No, unless the same page also provides a carrier return tracking number.
What it can and cannot prove	It proves a return request or case exists; it does not prove the parcel is moving.

Gift/order link

Gift notification email or purchaser-shared link from the original store.

View all details for gift or order link

Looks like / example	Secure merchant link rather than a public tracking number.
Who issues it	The merchant or marketplace used by the purchaser.
Can 17TRACK use it?	No; copy the carrier tracking number from the page if it is visible.
What it can and cannot prove	It can allow limited gift tracking, but it may hide billing or refund information.

Seller reference

Seller message, invoice, packing slip, or marketplace conversation.

View all details for seller reference

Looks like / example	SELLER-REF-#### or another seller-defined masked reference.
Who issues it	The individual merchant or marketplace seller.
Can 17TRACK use it?	No, unless the seller reference is also a carrier tracking number.
What it can and cannot prove	It helps the seller find the order but does not prove carrier transit.

Marketplace order ID

Marketplace order details, buyer account, invoice, or dispute center.

View all details for marketplace order ID

Looks like / example	Marketplace-defined masked format; do not assume an Amazon-style or eBay-style format for 51tracking.
Who issues it	The marketplace where the purchase was made.
Can 17TRACK use it?	Usually no; use it inside the marketplace to find the carrier tracking number.
What it can and cannot prove	It identifies a marketplace transaction and dispute route, not public parcel movement by itself.

Fulfillment, Sellers and Carriers

51tracking does not determine who ships a purchased item. The carrier and delivery route depend on the original merchant, seller, item, delivery option, origin, destination, and whether a cross-border handoff occurs.

Fulfillment & Carrier Relationship

Fulfillment model

Who ships it

Retailer-owned warehouse

The merchant’s own warehouse or contracted fulfillment provider.

View all details for retailer-owned warehouse

Typical carriers or delivery network	Carrier varies by merchant, region, item type, and delivery option.
Who updates tracking	The carrier after acceptance; the merchant may show order processing and label creation.
Who handles delivery issues	Carrier for delivery attempts; merchant for wrong item, replacement, cancellation, or refund request.
What the customer should check first	Order detail page, shipping email, and whether tracking has a carrier acceptance scan.

Third-party seller self-fulfillment

The seller selects the carrier and uploads tracking to the marketplace.

View all details for third-party seller self-fulfillment

Typical carriers or delivery network	Carrier varies by seller, origin country, destination country, and logistics provider.
Who updates tracking	The seller uploads the number; carriers update scans when data is available.
Who handles delivery issues	Seller or marketplace for wrong tracking and non-shipment; carrier for local delivery event questions.
What the customer should check first	Seller name, uploaded tracking number, latest event date, and marketplace buyer protection route.

Platform fulfillment

A marketplace fulfillment center may pack and ship on behalf of the seller.

View all details for platform fulfillment

Typical carriers or delivery network	Network varies by the platform and region; not controlled by 51tracking.
Who updates tracking	Platform and carrier systems may both show updates, depending on integration.
Who handles delivery issues	Marketplace support typically handles order-level service; carrier handles delivery attempt details when accessible.
What the customer should check first	Marketplace order page, shipment split, platform support rules, and carrier proof of delivery.

Cross-border seller

Seller, exporter, postal operator, line-haul provider, customs broker, and last-mile carrier may all participate.

View all details for cross-border seller

Typical carriers or delivery network	Postal networks, consolidators, and last-mile carriers vary by lane and service.
Who updates tracking	Origin carrier, export line-haul provider, customs-related systems, and destination carrier when events are shared.
Who handles delivery issues	Seller for shipment proof and claims route; carrier or postal operator for local delivery scans; customs authority may control clearance.
What the customer should check first	Latest country, customs status, whether a destination tracking number exists, and seller-provided shipping terms.

Store pickup or pickup point

The store, pickup network, locker operator, or local carrier may prepare pickup.

View all details for store pickup or pickup point

Typical carriers or delivery network	May involve no public carrier tracking if the order is fulfilled internally.
Who updates tracking	The merchant or pickup provider updates readiness; carrier scans appear only if a carrier transports the parcel.
Who handles delivery issues	Store or pickup provider for collection issues; merchant support for cancellation or refund.
What the customer should check first	Pickup notification, required ID, collection deadline, and store instructions from the original merchant.

Digital goods or services

No parcel carrier ships a digital order.

View all details for digital goods or services

Typical carriers or delivery network	Not applicable because there is no physical parcel.
Who updates tracking	The merchant account may show activation, license, download, or service status.
Who handles delivery issues	Merchant or platform support handles access, activation, refund eligibility, or account problems.
What the customer should check first	Email inbox, account downloads, license page, and spam folder rather than 51tracking or 17TRACK.

Tracking Statuses and Meanings

A status can describe the order, the shipment label, carrier transit, return movement, or refund processing. Read the source of the status before deciding who is responsible now.

Status Quick Lookup

Status shown

Lifecycle stage

Pending

Order created or shipment information not yet available.

View all details for Pending

What it usually means	The merchant may have received the order but has not shipped or shared carrier data.
Who is responsible now	Merchant, seller, or platform order system.
What happens next	Payment confirmation, picking, packing, label creation, or cancellation if the order cannot be fulfilled.
What the customer should do	Check the merchant order page and wait for a shipping confirmation unless the merchant’s promised processing window has passed.

Processing

Merchant or seller is preparing the order.

View all details for Processing

What it usually means	Items are being confirmed, picked, packed, sourced, or assigned to a warehouse.
Who is responsible now	Merchant, seller, fulfillment provider, or marketplace fulfillment service.
What happens next	A shipping label may be created and a tracking number may be added.
What the customer should do	Look for estimated ship date, stock notes, preorder notes, or seller messages.

Preparing shipment

Label or package preparation stage before confirmed carrier movement.

View all details for Preparing shipment

What it usually means	A label may exist, but the parcel may not yet have an acceptance scan.
Who is responsible now	Fulfillment party until carrier acceptance appears.
What happens next	Carrier pickup, drop-off, or first scan.
What the customer should do	Do not treat this as delivered or lost; check again after the carrier has time to receive the parcel.

Shipped

Merchant has marked the shipment as sent or provided a tracking number.

View all details for Shipped

What it usually means	The package may have left the seller, or the seller may have created and uploaded the shipping label.
Who is responsible now	Seller until handoff; carrier after acceptance scan.
What happens next	First carrier scan or origin processing.
What the customer should do	Use the tracking number on 17TRACK or carrier website and check for acceptance scan.

In transit

Carrier network is moving the parcel between facilities or countries.

View all details for In transit

What it usually means	The parcel has at least one movement or processing event in the carrier network.
Who is responsible now	Carrier, postal operator, line-haul provider, or last-mile carrier.
What happens next	Facility arrival, export, import, customs, local sorting, or delivery route assignment.
What the customer should do	Monitor the latest scan date and location; escalate only when the carrier or merchant delay threshold is met.

Out for delivery

Local carrier has assigned the parcel for delivery attempt.

View all details for Out for delivery

What it usually means	The parcel is with a delivery route, driver, depot, or local post office for attempt.
Who is responsible now	Last-mile carrier.
What happens next	Delivery, failed attempt, pickup notice, reschedule option, or exception.
What the customer should do	Check delivery instructions, access codes, pickup requirements, and local carrier updates.

Delivered

Carrier has marked delivery complete.

View all details for Delivered

What it usually means	The carrier recorded delivery to an address, mailbox, parcel room, front desk, neighbor, locker, pickup point, or Other permitted location.
Who is responsible now	Carrier for delivery evidence; merchant or marketplace for order resolution if the item is not received.
What happens next	No more outbound movement unless a correction, retrieval, or return occurs.
What the customer should do	Check all delivery locations, ask household or front desk, review proof of delivery, then contact merchant or carrier with evidence.

Exception

Carrier cannot proceed normally due to an operational, address, customs, payment, or access issue.

View all details for Exception

What it usually means	Examples include failed delivery attempt, incomplete address, customs hold, damaged parcel, refused delivery, or return to sender.
Who is responsible now	Carrier for operational action; buyer or seller may need to provide missing information.
What happens next	Redelivery, pickup, address confirmation, customs release, claim, or return.
What the customer should do	Follow carrier instructions quickly and inform the seller if product or refund action may be needed.

Return

Parcel is moving back to seller, warehouse, or return center.

View all details for Return

What it usually means	The outbound parcel is returning after failure, refusal, address issue, or a customer return has been dropped off.
Who is responsible now	Return carrier for movement; merchant for inspection and refund decision.
What happens next	Return delivery, inspection, exchange, replacement, refund review, or dispute.
What the customer should do	Keep drop-off receipt and return tracking number; monitor both return logistics and merchant refund status.

Refund

Payment or merchant service stage, not a carrier tracking stage.

View all details for Refund

What it usually means	The merchant or marketplace is reviewing, approving, issuing, or posting a refund.
Who is responsible now	Merchant, marketplace, seller, and payment provider depending on the order terms.
What happens next	Inspection, approval, refund issuance, bank processing, store credit, or denial with reason.
What the customer should do	Use merchant support or payment channel; do not rely on 51tracking or 17TRACK to determine refund approval.

Delivery Time and Delay Factors

51tracking does not publish one universal delivery time for all merchants or carriers. Delivery timing must come from the original merchant, seller, marketplace, carrier service, and the latest tracking events.

Delivery Time & Delay Factors

Scenario/service

Typical timing source

Domestic parcel

Merchant delivery estimate and local carrier service level.

View all details for domestic parcel

What can delay it	Seller processing, weekend cutoffs, carrier capacity, weather, address problems, or failed delivery attempt.
When tracking may update	After carrier acceptance, facility scans, out-for-delivery scan, or final delivery scan.
Who to contact first	Carrier for local delivery event issues; merchant if the parcel was never accepted or item is wrong.
Important caveat	An estimated delivery date is not a guarantee unless the original merchant or carrier explicitly states guaranteed terms.

Cross-border parcel

Merchant estimate, origin postal operator, line-haul provider, customs process, and destination carrier.

View all details for cross-border parcel

What can delay it	Export processing, airline or line-haul capacity, customs review, duty payment, destination handoff, or local delivery backlog.
When tracking may update	At origin acceptance, export, import, customs release, destination carrier receipt, and delivery.
Who to contact first	Seller for shipment route and claim support; destination carrier if the parcel is already in local delivery.
Important caveat	Some cross-border lanes have long gaps between export and destination scans.

Third-party seller order

Seller handling time and marketplace estimated delivery window.

View all details for third-party seller order timing

What can delay it	Seller stock issues, delayed dispatch, incorrect tracking upload, consolidator transfer, or low-visibility shipping service.
When tracking may update	After seller handoff and first carrier scan; sometimes after consolidation or customs handoff.
Who to contact first	Seller through the marketplace message center, then platform support if seller response is insufficient.
Important caveat	A seller-provided number can be invalid, reused, or not yet accepted; verify with carrier scans.

Preorder or out-of-stock item

Merchant product page, preorder terms, and order status.

View all details for preorder or out-of-stock timing

What can delay it	Supplier arrival, allocation, payment review, backorder queue, or release date changes.
When tracking may update	Only after the item is ready and a shipment is created.
Who to contact first	Merchant or seller support.
Important caveat	51tracking and 17TRACK cannot track a parcel that has not yet been created.

Split shipment

Merchant order detail page and each package’s tracking number.

View all details for split shipment timing

What can delay it	Different warehouses, item availability, seller sources, carrier services, or delivery locations.
When tracking may update	Each package updates independently after its own label and carrier acceptance.
Who to contact first	Merchant or seller for missing item; carrier for a package with active delivery scans.
Important caveat	Do not assume every item uses the same tracking number.

Store pickup or pickup point

Merchant pickup notification, store instructions, or pickup provider notice.

View all details for pickup timing

What can delay it	Store transfer, inventory mismatch, locker capacity, ID verification, or missed pickup deadline.
When tracking may update	When ready for pickup, collected, expired, or returned to sender.
Who to contact first	Store, pickup provider, or original merchant support.
Important caveat	Public carrier tracking may not exist for purely in-store pickup orders.

High-value, signature, or restricted item

Merchant shipping terms and carrier service requirements.

View all details for high-value or signature item timing

What can delay it	Signature requirement, age or ID check, insurance handling, failed delivery attempt, or secure pickup requirement.
When tracking may update	At delivery attempt, pickup availability, signature capture, or return if collection fails.
Who to contact first	Carrier for delivery appointment or pickup; merchant for replacement or refund rules.
Important caveat	Delivery release rules depend on the carrier and merchant; do not assume signature can be waived.

Holiday or peak season

Merchant cutoff notices and carrier network updates.

View all details for holiday or peak season timing

What can delay it	Order volume, carrier backlog, customs congestion, weather disruptions, and reduced operating days.
When tracking may update	When facilities process backlog or the parcel reaches the next scan point.
Who to contact first	Carrier for network disruption; merchant if the order missed promised handling or was not shipped.
Important caveat	Peak-season estimated dates can change as carrier capacity changes.

Common Problems and Next Steps

Use the latest verified event to decide the next action. For most order problems, 51tracking and 17TRACK can help you read tracking data, while the merchant, seller, marketplace, carrier, or payment provider must resolve the underlying service issue.

Problem & Next Step

Problem shown

Check first

No tracking number

Merchant order page, shipping email, seller message, and whether the order is still processing.

View all details for no tracking number

Likely cause	Order not shipped, label not created, seller delay, guest checkout email issue, or digital/pickup order.
Immediate action	Search email and account; ask seller for the carrier tracking number if the processing window has passed.
When to escalate	When the seller misses the merchant or marketplace handling commitment or refuses to provide shipment proof.
Who to contact	Original merchant or marketplace seller.

Tracking number not working

Number spelling, carrier selection, first scan timing, and whether it is an order number instead.

View all details for tracking number not working

Likely cause	New label, wrong carrier, typo, internal merchant ID, reused number, or unsupported carrier data.
Immediate action	Copy directly from the shipping email, try carrier website, and confirm the carrier with the seller.
When to escalate	When no scan appears after seller says the parcel was handed over or the carrier rejects the number.
Who to contact	Seller first for corrected number; carrier if the number is valid but the delivery event is unclear.

Order says shipped but no scans

Whether the status is label created, seller shipped, or carrier accepted.

View all details for shipped but no scans

Likely cause	Label created before pickup, batch handoff delay, carrier scan lag, or seller marked shipped early.
Immediate action	Wait for first carrier acceptance if the label is new; then ask seller for handoff proof if no scan appears.
When to escalate	When the merchant’s stated shipping or delivery window is exceeded.
Who to contact	Seller or merchant before the first carrier scan; carrier after a valid acceptance scan.

Package stuck

Latest scan date, latest location, carrier handoff, customs status, and destination carrier visibility.

View all details for package stuck

Likely cause	Facility backlog, cross-border transfer, customs review, missed scan, weather disruption, or address issue.
Immediate action	Check carrier site and 17TRACK for alternate carrier detection; save screenshots of latest events.
When to escalate	When the parcel exceeds the carrier or merchant’s investigation threshold.
Who to contact	Carrier for active network issue; seller for claim or replacement route.

Delivery attempted

Carrier notice, pickup location, redelivery options, access notes, and deadline.

View all details for delivery attempted

Likely cause	No one available, signature required, address access problem, unpaid duty, or locker/pickup redirect.
Immediate action	Follow carrier redelivery or pickup instructions and bring required ID if collecting.
When to escalate	Before the pickup deadline or if the carrier returns the parcel to sender.
Who to contact	Carrier first; merchant if the parcel is returned or cannot be delivered.

Address problem

Order address, postal code, apartment number, phone number, and carrier correction options.

View all details for address problem

Likely cause	Incomplete address, wrong postal code, restricted building access, changed residence, or carrier validation failure.
Immediate action	Check whether the carrier or merchant allows correction before delivery attempt.
When to escalate	Immediately if the package is at risk of return to sender.
Who to contact	Carrier if correction is allowed; merchant if carrier requires shipper authorization.

Customs hold

Tracking notes, duty request, documentation request, and destination postal or customs instructions.

View all details for customs hold

Likely cause	Import review, missing invoice, restricted goods, duty/tax payment, or customs backlog.
Immediate action	Follow official carrier or customs instructions and ask seller for invoice or shipment documents if required.
When to escalate	When documents are requested, duty is unpaid, or the parcel remains held beyond official instructions.
Who to contact	Carrier or customs channel for clearance actions; seller for documentation.

Delivered but not received

Mailbox, porch, parcel room, front desk, neighbor, pickup point, delivery photo, and proof of delivery.

View all details for delivered but not received

Likely cause	Alternate safe place, household pickup, front desk receipt, wrong scan, misdelivery, theft, or delayed carrier correction.
Immediate action	Check all delivery locations, ask household or building staff, review proof of delivery, then contact carrier and merchant with screenshots.
When to escalate	When carrier evidence conflicts with actual receipt or the merchant’s item-not-received window applies.
Who to contact	Carrier for delivery evidence; merchant or marketplace for claim, replacement, or refund review.

Split shipment missing item

Order detail page, package contents, item-level shipment assignment, and separate tracking numbers.

View all details for split shipment missing item

Likely cause	Different warehouse, partial shipment, seller split, canceled item, backorder, or packing error.
Immediate action	Match each item to its package tracking number before reporting missing merchandise.
When to escalate	When all related packages are delivered and the item is still missing.
Who to contact	Merchant or seller, not 51tracking or 17TRACK.

Seller did not ship

Handling time, seller messages, label date, first carrier scan, and marketplace protection timeline.

View all details for seller did not ship

Likely cause	Out of stock, seller delay, false dispatch, wrong tracking upload, or payment review.
Immediate action	Ask the seller for carrier name, tracking number, and proof of handoff.
When to escalate	When the seller misses marketplace or merchant shipping rules.
Who to contact	Marketplace support or dispute center if seller response is inadequate.

Wrong item

Photos of package, label, item, invoice, and order details.

View all details for wrong item

Likely cause	Picking error, seller substitution, wrong SKU, mixed shipment, or listing problem.
Immediate action	Do not discard packaging; photograph label and item and open a merchant support case.
When to escalate	When seller refuses correction or return authorization despite evidence.
Who to contact	Merchant, seller, or marketplace dispute route.

Lost or damaged package

Latest scan, delivery proof, damage photos, packaging, and merchant claim instructions.

View all details for lost or damaged package

Likely cause	Carrier loss, misroute, damaged handling, theft after delivery, or packaging failure.
Immediate action	Keep evidence, request carrier investigation if available, and contact the merchant for claim or replacement route.
When to escalate	When carrier investigation or merchant support requires a formal claim.
Who to contact	Carrier for investigation; merchant or seller for order remedy.

Return not updating

Drop-off receipt, return carrier number, return label status, and destination return center.

View all details for return not updating

Likely cause	Carrier drop-off scan delay, consolidated return, wrong label, or return center receiving backlog.
Immediate action	Track the return number separately and keep the receipt until refund is completed.
When to escalate	When the return carrier cannot confirm possession or merchant refund review stalls after return delivery.
Who to contact	Return carrier for movement; merchant for refund status.

Refund pending

Merchant return status, refund case ID, payment method, and whether return was delivered and inspected.

View all details for refund pending

Likely cause	Return inspection not finished, seller dispute, payment provider processing, missing item, or refund not approved.
Immediate action	Provide return tracking delivery proof and ask merchant for refund case status.
When to escalate	When the merchant’s stated refund processing window has passed.
Who to contact	Merchant, marketplace dispute center, or payment provider depending on the purchase terms.

Returns, Exchanges and Refunds

No official 51tracking retail return or refund policy is confirmed from the provided tracking page, so return and refund actions must be started with the original merchant, seller, or marketplace. 17TRACK can help track a return parcel when you have a carrier return tracking number; it cannot decide whether a refund is approved.

Returns & Refunds

Scenario

Where to start

Return request

Original merchant account, marketplace return center, seller message center, or order support page.

View all details for return request

Who can start it	Usually the purchaser or account holder; gift recipients may have limited options depending on merchant rules.
Identifier needed	Order number, account email, item details, photos, and reason for return.
Return shipping/tracking	Use the return label tracking number if one is issued.
Refund timing dependency	Depends on merchant approval, carrier return delivery, inspection, and payment processing.
Important limitation	51tracking is not confirmed as the merchant and should not be treated as the return approver.

Exchange

Merchant or seller support, if exchanges are offered for that order.

View all details for exchange

Who can start it	Purchaser, authorized account user, or gift recipient where merchant policy allows.
Identifier needed	Order number, item SKU, reason, photos, and return authorization if required.
Return shipping/tracking	Track the return parcel and any replacement shipment separately.
Refund timing dependency	May depend on return receipt before replacement shipment or credit issuance.
Important limitation	Tracking confirms movement, not whether an exchange is approved.

Cancel order

Merchant order details or marketplace cancellation page before shipment is locked.

View all details for cancel order

Who can start it	Purchaser or account holder, subject to merchant cancellation rules.
Identifier needed	Order number, account email, and payment confirmation.
Return shipping/tracking	If the order already shipped, cancellation may become a return or refusal process.
Refund timing dependency	Depends on whether payment was captured and whether goods already shipped.
Important limitation	51tracking and 17TRACK cannot cancel an order or stop a parcel in transit.

Return label

Merchant return portal, marketplace return center, seller support, or carrier drop-off receipt.

View all details for return label

Who can start it	Authorized return requester under the merchant policy.
Identifier needed	Return authorization, order number, item details, and shipping address.
Return shipping/tracking	Save the carrier tracking number and drop-off receipt.
Refund timing dependency	Depends on whether the merchant requires scan, delivery, or inspection before refund.
Important limitation	A label created event does not prove the return was dropped off.

Refund status

Merchant account, marketplace refund case, payment provider, or customer support.

View all details for refund status

Who can start it	Purchaser or account holder; payment disputes may require the cardholder or payment account owner.
Identifier needed	Order number, refund case ID, payment method, return tracking, and support history.
Return shipping/tracking	Return tracking is useful evidence but separate from refund approval.
Refund timing dependency	Merchant review, return inspection, seller response, marketplace policy, and payment network posting.
Important limitation	17TRACK cannot confirm bank posting or merchant refund approval.

Gift return

Merchant gift return route or purchaser’s account, if available.

View all details for gift return

Who can start it	Gift recipient only if the merchant offers gift return; otherwise the purchaser may need to act.
Identifier needed	Gift receipt, order link, purchaser help, item details, and delivery information.
Return shipping/tracking	Track the return label number if a physical return is required.
Refund timing dependency	May result in store credit, replacement, or purchaser refund depending on merchant terms.
Important limitation	Privacy rules may prevent 51tracking, 17TRACK, or the recipient from seeing full order data.

Third-party seller return

Marketplace return center or seller message center.

View all details for third-party seller return

Who can start it	Purchaser through marketplace rules or direct seller support depending on purchase channel.
Identifier needed	Marketplace order ID, seller name, reason, photos, and tracking evidence.
Return shipping/tracking	Use marketplace-issued or seller-issued label and keep proof of drop-off.
Refund timing dependency	Seller approval, marketplace mediation, return delivery, and inspection.
Important limitation	Seller rules may differ from platform-managed orders; keep all messages inside the marketplace when possible.

Cross-border return

Merchant or marketplace return instructions before shipping anything back internationally.

View all details for cross-border return

Who can start it	Purchaser or authorized return requester under merchant terms.
Identifier needed	Return authorization, customs documents if required, order number, and item value details.
Return shipping/tracking	Use a trackable service and keep customs and drop-off receipts.
Refund timing dependency	International transit, customs, return center receipt, inspection, and merchant approval.
Important limitation	Do not invent return addresses; only use the official merchant return instructions.

Customer Service and Escalation

Use the channel that controls the problem. 51tracking is not confirmed as the seller of goods, so order service should usually go to the merchant, marketplace, seller, carrier, or payment provider.

Customer Service

Channel

Best for

Original merchant help center

Order cancellation, missing items, wrong item, return request, exchange, refund, and address issues before shipment.

View all details for original merchant help center

Where to access	The store or marketplace where the purchase was placed.
Information to prepare	Order number, account email or phone, shipping address, item name, photos, invoice, and support history.
Who should use it	Purchaser or authorized account user.
Important limitation	Merchant support may not control carrier scans after acceptance.

Seller or marketplace message center

Third-party seller delays, wrong tracking number, seller self-shipping, item not as described, or seller return disputes.

View all details for seller or marketplace message center

Where to access	The marketplace order page or buyer-seller messaging system.
Information to prepare	Marketplace order ID, seller name, listing title, tracking number, screenshots, photos, and delivery evidence.
Who should use it	Buyers with third-party seller orders.
Important limitation	Keep communication in the platform when marketplace buyer protection depends on platform records.

Carrier support

Delivery attempt, pickup, proof of delivery, local depot, address correction if allowed, or damaged parcel investigation.

View all details for carrier support

Where to access	The official carrier website shown by the tracking result or merchant order page.
Information to prepare	Carrier tracking number, destination postal code, recipient name, latest event, delivery photo, and proof of identity if required.
Who should use it	Recipient or shipper depending on carrier rules.
Important limitation	Some carriers require the shipper to open claims or authorize changes.

Return center

Return label, exchange, return tracking, return drop-off, and refund case evidence.

View all details for return center

Where to access	The merchant or marketplace return portal for the original purchase.
Information to prepare	Order number, RMA, reason, photos, return label, carrier receipt, and return tracking number.
Who should use it	Purchaser, authorized account user, or gift recipient where allowed.
Important limitation	Return delivery does not automatically mean refund posting.

Payment provider

Payment posting, refund not received after merchant says issued, or formal payment dispute.

View all details for payment provider

Where to access	Your card issuer, wallet, bank, or payment account used for the purchase.
Information to prepare	Payment transaction ID, order number, merchant refund confirmation, return tracking, and support case history.
Who should use it	Payment account owner or cardholder.
Important limitation	Payment disputes may have strict evidence and timing rules set by the provider.

51tracking website

Checking shipment events on the 51tracking tracking page when you have a supported tracking number.

View all details for 51tracking website

Where to access	51tracking China Post tracking page.
Information to prepare	Carrier tracking number copied accurately from the merchant or carrier notice.
Who should use it	Anyone who needs a tracking lookup view for a supported number.
Important limitation	No verified 51tracking order support, phone number, return center, or refund channel is confirmed here.

17TRACK

Independent multi-carrier tracking and tracking API registration for carrier tracking numbers.

View all details for 17TRACK

Where to access	17TRACK tracking tools and 17TRACK API documentation.
Information to prepare	Carrier tracking number; not private order number, payment ID, or RMA alone.
Who should use it	Buyers, recipients, merchants, and developers needing tracking visibility where supported.
Important limitation	17TRACK cannot contact 51tracking, seller, carrier, or merchant on your behalf.

Seller, Marketplace and Buyer Responsibility

This module is conditionally relevant when the tracked parcel was purchased from a marketplace or third-party seller. 51tracking itself is not confirmed as a marketplace seller model from the provided page, but many users reach tracking pages after buying elsewhere.

Marketplace Responsibility

Issue

Buyer action

Seller has not shipped

Ask for carrier, tracking number, and handoff proof inside the marketplace.

View all details for seller has not shipped

Platform role	Shows order, seller, and buyer protection route if purchased there.
Seller role	Must dispatch according to listing and marketplace rules.
Carrier role	No role until the parcel is accepted.
Evidence to keep	Order page, seller messages, label date, and absence of carrier acceptance scan.

Seller provided wrong tracking

Compare destination, carrier events, and item timeline; request corrected tracking.

View all details for seller provided wrong tracking

Platform role	May mediate if tracking conflicts with buyer protection rules.
Seller role	Must explain or correct the uploaded number.
Carrier role	Can verify scans, delivery area, and proof where accessible.
Evidence to keep	Tracking screenshots, destination mismatch, seller reply, and order details.

Item not received

Check delivery proof and open a marketplace or merchant case if not resolved.

View all details for item not received

Platform role	May provide buyer protection or dispute process based on purchase terms.
Seller role	May provide shipment proof, replacement, or refund route.
Carrier role	Provides delivery event, attempt note, or proof of delivery if available.
Evidence to keep	Latest tracking event, proof of delivery, photos, messages, and delivery location checks.

Item not as described

Photograph item, packaging, label, and listing before requesting return or dispute.

View all details for item not as described

Platform role	May mediate based on marketplace item condition or listing rules.
Seller role	Responds to return, replacement, or refund request.
Carrier role	Usually only relevant if shipping damage is involved.
Evidence to keep	Listing screenshot, item photos, package label, invoice, and message history.

Return dispute

Keep return tracking, drop-off receipt, photos, and platform case records.

View all details for return dispute

Platform role	May review return delivery and seller response.
Seller role	Inspects returned item and responds to refund or exchange request.
Carrier role	Shows return transit and delivery to return address.
Evidence to keep	RMA, tracking number, delivery scan, item photos, and condition evidence.

Delivery scan conflict

Collect carrier proof and compare it with address, building, and household checks.

View all details for delivery scan conflict

Platform role	May require evidence before deciding item-not-received cases.
Seller role	May need to initiate shipper claim or provide replacement decision.
Carrier role	Can investigate misdelivery or provide delivery evidence.
Evidence to keep	Proof of delivery, photos, camera records if available, and statement of non-receipt.

Refund after delivery failure

Show return-to-sender, failed delivery, loss, or carrier investigation evidence to the merchant.

View all details for refund after delivery failure

Platform role	May decide eligibility if the order was covered by marketplace policy.
Seller role	May issue refund, replacement, or claim after evidence review.
Carrier role	Provides scan history and investigation outcome.
Evidence to keep	Failed delivery scans, return scans, support case ID, and communication history.

Brand App, Notifications and Delivery Options

No official 51tracking app, delivery instruction system, pickup network, locker service, membership delivery benefit, or merchant notification system is confirmed from the provided tracking page. If the original merchant or carrier offers delivery options, manage them through that merchant or carrier, not through 51tracking.

App, Notifications and Delivery Options

Feature

Use case

51tracking tracking page

View available shipment events for a supported tracking number.

View all details for 51tracking tracking page

Where to enable	No account-based delivery option is confirmed here; use the public tracking page when available.
When it appears	After you have a tracking number from the merchant, seller, or carrier.
What it can change	It can help you read shipment visibility; it does not change delivery handling.
Limitations	No verified authority to reschedule delivery, add instructions, release signature, or change address.

Merchant email or SMS

Receive shipment confirmation, carrier link, tracking number, or order status update.

View all details for merchant email or SMS

Where to enable	Original merchant account, checkout communication preferences, or marketplace settings.
When it appears	After order confirmation, dispatch, delivery attempt, delivery, return, or refund status changes depending on merchant systems.
What it can change	May allow account sign-in, order support, or carrier link access.
Limitations	51tracking cannot restore missing merchant emails or verify private account ownership.

Carrier delivery options

Reschedule, pickup, delivery instruction, signature, proof of delivery, or address correction where carrier allows.

View all details for carrier delivery options

Where to enable	Official carrier website or app shown by the tracking result.
When it appears	Usually after the parcel is in the carrier network and eligible for local delivery options.
What it can change	May change delivery appointment, pickup point, instructions, or proof request depending on carrier rules.
Limitations	Some changes require shipper authorization or are not available for every service.

Business, Seller or Developer API

A current public official 51tracking order tracking API is not confirmed from the provided official page. For developers who need tracking registration and shipment visibility, use a verified tracking API such as the 17TRACK API with carrier tracking numbers.

Developer/API Comparison

Option

Primary use

51tracking public official API

Current public official order tracking API not confirmed from the provided 51tracking page.

View all details for 51tracking public official API

Provider	51tracking, if such documentation is separately published and verified.
Order/tracking coverage	Not confirmed; do not assume merchant order coverage.
Authentication/access	Not confirmed.
Webhook/batch capability	Not confirmed.
Current documentation	No confirmed public developer documentation is cited here beyond the provided tracking page.
Important limitation	Do not build production integrations from unverified endpoints or copied third-party claims.

17TRACK API

View all details for 17TRACK API

Provider	17TRACK.
Order/tracking coverage	Carrier tracking numbers, not merchant order numbers, payment IDs, invoices, or RMA-only identifiers.
Authentication/access	Uses 17token header according to the 17TRACK API documentation.
Webhook/batch capability	Refer to current 17TRACK API documentation for supported workflow details.
Current documentation	17TRACK API Documentation.
Important limitation	The API example below uses tracking number registration only and does not create, cancel, refund, or modify 51tracking-related orders.

FAQ

Basic FAQs

1. How do I track my 51tracking order?

Use the carrier tracking number from the original merchant, seller, marketplace, or shipping email, then check it on 51tracking, 17TRACK, or the carrier website when tracking is available.

2. Is 51tracking the store that shipped my package?

51tracking is not confirmed as the merchant or seller from the provided official tracking page; it should be treated as a tracking website unless your purchase record proves otherwise.

3. Where do I find the tracking number for a package shown on 51tracking?

Look in the shipping confirmation email, merchant order details, marketplace account, seller message, carrier notice, or return label because those sources usually issue or display the carrier tracking number.

4. Can I track with an order number on 51tracking or 17TRACK?

Usually no; an order number identifies the purchase with the merchant, while 51tracking and 17TRACK generally need a carrier tracking number to show parcel events.

5. What should I do if there is no tracking number yet?

Check whether the order is still processing, whether only a label was created, and whether the seller has uploaded tracking; contact the merchant or seller if their stated handling window has passed.

6. Why is my 51tracking tracking number not updating?

Tracking may not update because the carrier has not accepted the parcel, the parcel is between scan points, a cross-border handoff is pending, or the number is incorrect or unsupported.

7. How long will delivery take for a package checked on 51tracking?

Delivery time depends on the original merchant, seller, carrier service, route, customs, and local delivery network; 51tracking does not provide one universal delivery promise for every package.

8. What if tracking says delivered but I did not receive the package?

Check all delivery locations, household members, front desk, neighbors, parcel room, locker, photo, and proof of delivery first, then contact the carrier and original merchant with tracking evidence.

9. Can 51tracking help with return tracking?

51tracking may help display return parcel events if you have a supported carrier return tracking number, but the return request and refund decision belong to the original merchant or marketplace.

10. How do I contact support for an order I found through 51tracking?

Contact the original merchant, marketplace seller, carrier, or payment provider based on the problem, and prepare your order number, tracking number, seller name, latest tracking event, address, photos, and return evidence.

Expert FAQs

11. Why can a seller mark an order shipped before 51tracking shows scans?

A seller can create a label or mark dispatch before the carrier posts an acceptance scan, so the order status and carrier tracking status may temporarily disagree.

12. Who is responsible if a third-party seller uploads the wrong tracking number?

The seller must correct or explain the tracking number, the marketplace may mediate under its buyer protection rules, and the carrier can only verify events for a valid carrier number.

13. Can one order have multiple tracking numbers when I use 51tracking?

Yes, the original merchant may split one order into multiple shipments, and each package can have its own carrier, tracking number, route, and delivery date.

14. What does a cross-border gap mean in 51tracking results?

A cross-border gap can occur between export, line-haul transport, customs processing, and destination carrier receipt because not every handoff posts immediate public scans.

15. Can 17TRACK or 51tracking change my delivery address?

No, delivery address changes must be handled by the merchant before shipment or by the carrier when its rules allow recipient or shipper-authorized changes.

16. Does return tracking prove my refund is approved?

No, return tracking proves parcel movement or delivery when scans exist, while refund approval depends on merchant review, inspection, marketplace rules, and payment processing.

17. Is there a confirmed public 51tracking order tracking API?

A current public official 51tracking order tracking API is not confirmed from the provided tracking page, so developers should not assume 51tracking order API access without verified documentation.

18. What number should developers send to the 17TRACK API for 51tracking-related pages?

Developers should send the carrier tracking number to the 17TRACK API, not the merchant order number, payment ID, invoice number, internal delivery ID, or RMA-only reference.

Tracking API

POST https://api.17track.net/track/v2.4/register

Headers:
17token: YourKey
Content-Type: application/json

Body:
[
  {
    "number": "TRACKING_NUMBER"
  }
]

Important:
Use the carrier tracking number for the parcel.
Do not send a 51tracking page URL, merchant order number, payment ID, invoice number, RMA-only reference, or marketplace order ID unless it is also a valid carrier tracking number.

Sources & References

51tracking official website. 51tracking
51tracking China Post Tracking page. 51tracking
17TRACK API Documentation. 17TRACK

No official 51tracking retail shipping policy, returns/refunds policy, customer service phone line, seller center, marketplace rules, or public developer API documentation was confirmed from the provided official tracking page. For order-specific policies, use the original merchant, seller, marketplace, carrier, or payment provider that handled the purchase.

17TRACK is an independent tracking platform and is not affiliated with 51tracking.