About Mercari
Mercari is a peer-to-peer marketplace where buyers purchase items listed by individual sellers and merchants. The official U.S. website is https://www.mercari.com/. Tracking normally starts from the buyer’s order status page, order notifications, or the carrier tracking number supplied through the Mercari transaction.
Brand Entity & Order Ownership
| Entity / order party | Role in the order |
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| Mercari platform | Hosts listings, order pages, messages, ratings, returns and support workflows. |
View all details for Mercari platform| What it controls | Account order display, marketplace policies, in-app support and transaction workflows. |
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| What it cannot control | Physical carrier scans after a package is handed to a delivery network. |
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| Why it matters to tracking | The order page can show the transaction context, seller, shipment status and links that a carrier-only page cannot show. |
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| Buyer account | Shows purchases, messages, delivery status, return requests and help options. |
View all details for buyer account| What it controls | Buyer-side access to order status, communication, rating and issue reporting. |
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| What it cannot control | Seller packing speed, carrier routing, or refund approval outside the marketplace workflow. |
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| Why it matters to tracking | If only an order number is available, the buyer account is usually the place to find a usable carrier tracking number. |
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| Seller or merchant | Lists the item, confirms availability, packs the parcel and ships using the selected method. |
View all details for seller or merchant| What it controls | Item condition, packing, handoff to the carrier and accuracy of seller-provided tracking when shipping independently. |
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| What it cannot control | Carrier delivery scans after acceptance, buyer address accuracy, or platform refund decisions. |
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| Why it matters to tracking | A marketplace order may remain without carrier events until the seller actually drops off or schedules pickup for the shipment. |
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| Fulfillment party | Usually the seller; in some cases a partner or service may handle packing or label purchase. |
View all details for fulfillment party| What it controls | Package preparation, label attachment and first-mile handoff. |
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| What it cannot control | Marketplace account access or carrier network disruptions. |
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| Why it matters to tracking | The gap between label creation and first scan is common in marketplace shipping. |
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| Carrier or last-mile carrier | Transports the package and produces acceptance, transit, out-for-delivery and delivery scans. |
View all details for carrier or last-mile carrier| What it controls | Routing, delivery attempts, proof of delivery where available and scan timing. |
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| What it cannot control | Marketplace refunds, seller communication or item-not-as-described decisions. |
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| Why it matters to tracking | 17TRACK and carrier websites can only show events available from the carrier tracking number. |
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| Payment/refund channel | Handles marketplace transaction settlement and refund posting through Mercari workflows. |
View all details for payment and refund channel| What it controls | Refund method and financial posting after a marketplace decision or cancellation. |
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| What it cannot control | Carrier scan updates or package recovery. |
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| Why it matters to tracking | Delivered or returned scans may support a case, but they are not the same as refund approval. |
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| 17TRACK relationship | Independent tracking platform for usable carrier tracking numbers. |
View all details for 17TRACK relationship| What it controls | Tracking display, carrier detection where supported and API-based tracking registration. |
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| What it cannot control | Mercari order data, seller messages, address edits, claims, cancellations, returns or refunds. |
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| Why it matters to tracking | Use 17TRACK after you have a carrier tracking number; use Mercari for private order actions. |
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Quick Answer
To track a Mercari order, sign in to Mercari, open the purchase in your order list, and check the order status for shipment information. If a carrier tracking number is shown, you can track it on the carrier website or with 17TRACK.
If there is no tracking yet, the seller may not have shipped, the label may have been created without a carrier acceptance scan, or the shipment method may not provide full carrier tracking. Contact the seller through the Mercari message flow first when the order has not shipped; contact Mercari support through the Help Center or order issue route when the transaction needs platform review.
Pro Tip: 17TRACK can help track a usable carrier tracking number and may identify the carrier, but it cannot access private Mercari order details, message a seller, change an address, start a return, approve a refund or recover payment.
How to Track Mercari Orders
Start with the official Mercari order page because it connects the shipment to the seller, purchase, return options and issue reporting. Then use the carrier number outside Mercari only when one is visible.
Tracking Path Comparison
| Tracking path | Use when |
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| Official account / purchase page | You bought the item with your Mercari account. |
View all details for official account tracking| Identifier needed | Mercari account access and the relevant purchase. |
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| What you can see | Order status, seller context, shipment status, delivery issue entry points and return or cancellation routes where eligible. |
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| Best next step | Open the item purchase, check shipping status, copy the carrier tracking number if available, and confirm whether the seller shipped one package or multiple packages. |
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| Important limitation | Private order details are only visible to the account owner and are not visible to 17TRACK. |
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| Official order email or notification | You need the purchase link, shipped alert or status reminder. |
View all details for official notification tracking| Identifier needed | The email or app notification associated with the Mercari account. |
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| What you can see | Usually a link back to the order or a status update, depending on notification settings and transaction state. |
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| Best next step | Use the notification to open Mercari, then verify the current status inside the account. |
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| Important limitation | Email text can be older than the current order page; rely on the live order page for actions. |
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| 17TRACK | A carrier tracking number is available. |
View all details for 17TRACK tracking| Identifier needed | Carrier tracking number, not the Mercari order number or payment reference. |
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| What you can see | Carrier scan events available to 17TRACK, such as accepted, in transit, out for delivery or delivered. |
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| Best next step | Paste the tracking number into 17TRACK, review the latest scan, and compare it with the Mercari order status. |
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| Important limitation | 17TRACK cannot determine whether Mercari will approve a refund or return. |
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| Carrier website | You know the carrier and need delivery options or proof details. |
View all details for carrier website tracking| Identifier needed | Carrier tracking number and sometimes destination ZIP code or account verification. |
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| What you can see | Carrier-originated scans, delivery attempts, pickup instructions or proof information when offered by that carrier. |
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| Best next step | Check missed delivery, access point, address exception or proof of delivery details. |
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| Important limitation | The carrier cannot resolve item quality, seller dispute or marketplace refund questions. |
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| Seller or marketplace message center | The order is not shipped, tracking is missing, or seller-provided tracking looks wrong. |
View all details for seller message tracking| Identifier needed | The Mercari transaction and seller conversation. |
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| What you can see | Seller explanations, packing updates, handoff confirmation or corrected tracking details. |
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| Best next step | Ask for the carrier and tracking number, but keep communication inside Mercari for recordkeeping. |
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| Important limitation | Do not move payment or dispute handling outside Mercari. |
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| Guest, gift or another buyer’s order | You are not the account owner or someone purchased the item for you. |
View all details for guest or gift order tracking| Identifier needed | Ask the buyer for the carrier tracking number or official order link if Mercari provides one for that transaction. |
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| What you can see | Only carrier scans if you have the tracking number; private purchase details remain with the account holder. |
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| Best next step | Have the buyer check the Mercari order page and share only the needed tracking information. |
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| Important limitation | 17TRACK cannot unlock Mercari account orders for non-buyers. |
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Official account steps: sign in to Mercari, open your purchases or order list, select the item, check the order or shipment status, look for carrier and tracking details, and confirm whether the order was split into more than one shipment before opening a delivery issue.
Order Numbers, Tracking Numbers and Where to Find Them
A Mercari order number identifies a purchase inside Mercari. A carrier tracking number identifies a physical shipment inside a delivery network. 17TRACK needs the carrier tracking number, not the order number.
Identifier & Tracking Number Guide
| Identifier type | Where users find it |
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| Mercari order number | Order details, purchase history or transaction-related communications. |
View all details for Mercari order number| Looks like / example | Use a masked internal example such as order ######; do not treat this as a carrier format. |
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| Who issues it | Mercari transaction system. |
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| Can 17TRACK use it? | No, unless it is also a carrier tracking number, which is uncommon. |
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| What it can and cannot prove | It helps Mercari locate a transaction, but it does not prove carrier possession or delivery. |
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| Shipment or carrier tracking number | Shipping status area, shipment notification, label information or seller message. |
View all details for carrier tracking number| Looks like / example | Masked carrier-style example such as 9400 #### #### #### #### ## or 1Z ### ### ## #### ### #, depending on carrier. |
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| Who issues it | The selected carrier or shipping-label system. |
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| Can 17TRACK use it? | Yes, when the carrier and tracking data are supported. |
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| What it can and cannot prove | It can show carrier scans; it cannot prove the item matched the listing. |
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| Label-created number | Appears when a label exists before the carrier acceptance scan. |
View all details for label-created number| Looks like / example | Same format as the carrier tracking number, but it may initially show no movement. |
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| Who issues it | Carrier label system or marketplace shipping label workflow. |
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| Can 17TRACK use it? | Yes, but it may show no events until the carrier receives the parcel. |
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| What it can and cannot prove | It proves a label or tracking record exists; it does not by itself prove package handoff. |
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| Return tracking number | Return label, return instructions, email or order issue workflow. |
View all details for return tracking number| Looks like / example | Masked carrier-style number tied to the return shipment. |
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| Who issues it | Carrier or return-label provider through the return workflow. |
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| Can 17TRACK use it? | Yes, if it is a carrier tracking number. |
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| What it can and cannot prove | It can show return movement; it does not prove the refund is approved. |
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| Return authorization or case ID | Return request or help case inside Mercari. |
View all details for return authorization or case ID| Looks like / example | Masked case example such as case ######. |
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| Who issues it | Mercari support or return system. |
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| Can 17TRACK use it? | No; use it with Mercari support. |
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| What it can and cannot prove | It identifies the support or return process, not the physical package location. |
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| Seller reference | Seller message, packing note or third-party shipping confirmation. |
View all details for seller reference| Looks like / example | Seller-defined text such as box A, bundle 2, or shipment reference ####. |
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| Who issues it | Seller or merchant. |
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| Can 17TRACK use it? | No, unless the seller reference is also a carrier tracking number. |
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| What it can and cannot prove | It may help seller communication, but it is not independent carrier evidence. |
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| Gift or shared order link | Only if the buyer shares transaction information with the recipient. |
View all details for gift or shared order link| Looks like / example | A private link or screenshot from the buyer; no public universal Mercari tracking page is assumed. |
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| Who issues it | Buyer or Mercari transaction interface when available. |
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| Can 17TRACK use it? | No; 17TRACK needs the carrier number from the link or buyer. |
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| What it can and cannot prove | It may identify the purchase to the recipient, but private account controls remain with the buyer. |
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Fulfillment, Sellers and Carriers
Mercari is a marketplace, so shipping can vary by seller, item, label choice, region and delivery option. Do not assume one fixed carrier or one fixed delivery timeline for every Mercari purchase.
Fulfillment & Carrier Relationship
| Fulfillment model | Who ships it |
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| Seller-packed marketplace shipment | The individual seller packs and hands off the item. |
View all details for seller-packed shipment| Typical carriers or delivery network | Carrier varies by order, region, seller, item type and delivery option. |
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| Who updates tracking | The carrier updates scans after acceptance; Mercari may display those events in the order page. |
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| Who handles delivery issues | Carrier handles transport evidence; seller and Mercari handle transaction issues through Mercari. |
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| What the customer should check first | Check the order status and whether a label has first carrier acceptance. |
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| Seller uses Mercari shipping label | Seller ships with a label generated through the marketplace workflow. |
View all details for Mercari label shipment| Typical carriers or delivery network | Carrier options may vary by label, package and destination; rely on the shown tracking record. |
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| Who updates tracking | Carrier scan feed after label creation and package acceptance. |
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| Who handles delivery issues | Start with Mercari order support for transaction issues; use carrier details for delivery evidence. |
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| What the customer should check first | Check whether the status is only label created or has an acceptance scan. |
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| Seller ships independently | Seller chooses a carrier or shipping method outside the Mercari label flow. |
View all details for seller independent shipment| Typical carriers or delivery network | Carrier varies by the seller’s chosen service. |
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| Who updates tracking | Seller must provide a usable tracking number if the method includes tracking; carrier updates scans. |
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| Who handles delivery issues | Seller explains shipment method; carrier handles transport; Mercari handles marketplace dispute workflows. |
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| What the customer should check first | Ask the seller inside Mercari for the carrier and tracking number. |
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| Local pickup or meet-up style transaction | Only where the transaction flow supports a non-parcel handoff. |
View all details for local pickup style transaction| Typical carriers or delivery network | No carrier tracking if no parcel carrier is used. |
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| Who updates tracking | The marketplace transaction status rather than carrier scans. |
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| Who handles delivery issues | Use Mercari transaction rules and message records; 17TRACK is not applicable without a carrier number. |
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| What the customer should check first | Confirm the official Mercari flow and keep communication inside the platform. |
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| Digital or non-shippable item | Not a normal parcel shipment. |
View all details for digital or non-shippable item| Typical carriers or delivery network | No physical carrier tracking. |
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| Who updates tracking | Mercari transaction status or seller communication, if the transaction is allowed. |
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| Who handles delivery issues | Use Mercari help and policy channels, not a parcel tracker. |
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| What the customer should check first | Confirm the listing category and marketplace rules before expecting a tracking number. |
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Tracking Statuses and Meanings
Order status, shipment status, carrier scan, return status and refund status are different. A shipped status may come before the first carrier scan, and a delivered carrier scan does not automatically settle every marketplace issue.
Status Quick Lookup
| Status shown | Lifecycle stage |
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| Pending or order placed | Purchase and payment confirmation. |
View all details for pending order| What it usually means | The transaction exists, but shipping may not have started. |
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| Who is responsible now | Mercari order system and the seller preparing the item. |
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| What happens next | Seller prepares shipment or the order may enter a cancellation or issue workflow if not fulfilled. |
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| What the customer should do | Monitor order status and keep seller communication inside Mercari. |
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| Processing or preparing shipment | Seller handling and packing. |
View all details for processing shipment| What it usually means | The seller may be packing, printing a label or arranging handoff. |
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| Who is responsible now | Seller or fulfillment party. |
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| What happens next | A label may be created and then the carrier must scan acceptance. |
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| What the customer should do | Wait for a tracking number or message the seller if the order is overdue under Mercari rules. |
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| Shipped or label created | Shipment record exists. |
View all details for shipped or label created| What it usually means | A tracking number may exist, but carrier possession is confirmed only after acceptance or origin scan. |
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| Who is responsible now | Seller until handoff; carrier after acceptance. |
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| What happens next | Carrier scans should appear after the parcel enters the network. |
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| What the customer should do | Track the carrier number and distinguish label creation from movement. |
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| In transit | Carrier transportation. |
View all details for in transit status| What it usually means | The parcel is moving between carrier facilities or waiting for the next scan. |
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| Who is responsible now | Carrier or last-mile carrier. |
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| What happens next | Sorting, transfer, arrival at local facility or delivery attempt. |
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| What the customer should do | Check the latest carrier event and destination progress before escalating. |
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| Out for delivery | Last-mile delivery. |
View all details for out for delivery status| What it usually means | The carrier plans to attempt delivery that route day, subject to local conditions. |
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| Who is responsible now | Last-mile carrier. |
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| What happens next | Delivered, attempted delivery, rescheduled or exception scan. |
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| What the customer should do | Watch the delivery location, check carrier delivery options and verify access instructions. |
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| Delivered | Carrier marks delivery completed. |
View all details for delivered status| What it usually means | The carrier recorded delivery to the address, mailbox, locker, front desk, neighbor or another delivery point depending on service. |
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| Who is responsible now | Buyer verifies receipt; carrier provides delivery evidence; Mercari handles marketplace issue workflow. |
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| What happens next | Buyer confirms, rates, or reports a delivery problem through Mercari if the item is not found. |
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| What the customer should do | Check all delivery locations and proof details before opening a not-received issue. |
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| Exception or delivery attempted | Delivery disruption. |
View all details for exception status| What it usually means | Address access, missed delivery, weather, damage, hold, customs or operational delay may be involved. |
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| Who is responsible now | Carrier for transport; buyer may need to supply access or pickup action. |
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| What happens next | Redelivery, pickup, return to sender or further investigation. |
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| What the customer should do | Read the carrier scan carefully and contact the correct party for the exact exception type. |
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| Return or refund pending | Post-delivery or cancellation workflow. |
View all details for return or refund pending status| What it usually means | A return request, return shipment or refund decision is in progress. |
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| Who is responsible now | Buyer, seller, carrier and Mercari each have different roles depending on the case stage. |
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| What happens next | Return acceptance, return delivery confirmation, case review or refund posting. |
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| What the customer should do | Track the return number separately and check Mercari for refund status. |
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Delivery Time and Delay Factors
Mercari delivery timing depends on seller handling, selected shipping method, carrier performance and transaction type. Treat estimated delivery dates as estimates unless the official order page states a specific eligible remedy.
Delivery Time & Delay Factors
| Scenario/service | Typical timing source |
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| Domestic marketplace shipment | Mercari order estimate and carrier tracking estimate. |
View all details for domestic marketplace shipment| What can delay it | Seller handling, label creation without drop-off, carrier capacity, address issues or weather. |
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| When tracking may update | After carrier acceptance and at major scan points; not every route leg produces a scan. |
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| Who to contact first | Seller if not shipped; carrier if accepted and delayed; Mercari if a marketplace issue must be opened. |
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| Important caveat | No single delivery time applies to every Mercari order. |
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| Seller delayed shipment | Order status and seller communication. |
View all details for seller delayed shipment| What can delay it | Seller availability, packing problems, item availability or failure to ship. |
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| When tracking may update | Only after label creation and carrier acceptance. |
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| Who to contact first | Seller through Mercari messages, then Mercari support if the order becomes eligible for platform action. |
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| Important caveat | A seller message is not the same as a carrier scan. |
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| Split or bundled shipment | Order details and seller notes. |
View all details for split or bundled shipment| What can delay it | One package may ship separately, be scanned later or be missing from seller documentation. |
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| When tracking may update | Each tracking number updates independently. |
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| Who to contact first | Seller for package count; Mercari if an item is missing after delivery. |
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| Important caveat | Do not rate or close a transaction until you have checked the marketplace issue options for missing items. |
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| High-value, fragile or signature shipment | Carrier tracking and any seller shipping method details. |
View all details for high-value or fragile shipment| What can delay it | Signature requirement, inspection, damage handling or delivery access limits. |
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| When tracking may update | At carrier facility, out-for-delivery, attempted, held or delivered scans. |
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| Who to contact first | Carrier for delivery attempt instructions; Mercari for damaged item or transaction issue. |
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| Important caveat | Carrier proof does not settle item condition disputes by itself. |
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| Peak season or weather disruption | Carrier tracking alerts and Mercari order estimate. |
View all details for peak season or weather delay| What can delay it | Network congestion, storms, holidays, facility backlogs or rerouting. |
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| When tracking may update | After the next scanable movement or carrier exception resolution. |
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| Who to contact first | Carrier after acceptance; Mercari if delivery failure affects the transaction. |
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| Important caveat | A stale scan is not automatically a lost package. |
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Common Problems and Next Steps
Most Mercari tracking problems fall into three groups: the seller has not completed shipping, the carrier has not produced scans, or the marketplace transaction needs an issue or return workflow.
Problem & Next Step
| Problem shown | Check first |
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| No tracking number | Order status and seller message history. |
View all details for no tracking number| Likely cause | Seller has not shipped, shipment method does not show tracking yet, or tracking is only inside Mercari. |
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| Immediate action | Ask the seller inside Mercari for carrier and tracking details. |
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| When to escalate | Use Mercari help when the order qualifies for cancellation or issue review under current policy. |
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| Who to contact | Seller first, then Mercari. |
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| Tracking number not working | Carrier name, number transcription and label age. |
View all details for tracking number not working| Likely cause | Wrong carrier, mistyped number, newly created label, unsupported carrier feed or seller error. |
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| Immediate action | Copy the number exactly, try carrier website and 17TRACK, and ask seller to confirm the carrier. |
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| When to escalate | Escalate if the seller cannot provide valid shipping evidence and the order remains unresolved. |
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| Who to contact | Seller for correction; Mercari for marketplace review. |
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| Shipped but no scans | Whether the status is label created or carrier accepted. |
View all details for shipped but no scans| Likely cause | Seller printed a label but has not handed over the package, or first scan is delayed. |
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| Immediate action | Wait for carrier acceptance if recently shipped; ask seller for drop-off confirmation if the gap continues. |
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| When to escalate | Escalate through Mercari when the shipment fails to progress under marketplace rules. |
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| Who to contact | Seller before first scan; carrier after acceptance. |
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| Package stuck | Latest carrier scan location and date. |
View all details for package stuck| Likely cause | Carrier transfer delay, missed scan, facility backlog, weather or exception. |
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| Immediate action | Check the carrier page for service alerts and keep the tracking record. |
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| When to escalate | Escalate to carrier if accepted and delayed; open Mercari issue if delivery failure affects the order. |
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| Who to contact | Carrier for transit details; Mercari for transaction remedies. |
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| Delivery attempted | Carrier notice, access point, address and redelivery options. |
View all details for delivery attempted| Likely cause | No one available, signature needed, access blocked or pickup required. |
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| Immediate action | Follow carrier redelivery or pickup instructions promptly. |
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| When to escalate | Escalate if the package is returned or the carrier cannot complete delivery. |
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| Who to contact | Carrier first; Mercari if the transaction becomes disputed. |
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| Address problem | Shipping address in order and carrier exception text. |
View all details for address problem| Likely cause | Incomplete address, wrong apartment, forwarding issue or carrier validation failure. |
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| Immediate action | Contact carrier if they allow correction; contact Mercari support if account or transaction support is needed. |
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| When to escalate | Escalate before return-to-sender if possible. |
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| Who to contact | Carrier for delivery handling; Mercari for transaction record. |
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| Customs hold | Carrier scan wording and any customs request. |
View all details for customs hold| Likely cause | International routing, import review, documentation or duties where applicable. |
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| Immediate action | Follow carrier or customs instructions and keep seller communication documented. |
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| When to escalate | Escalate when the carrier confirms loss, return or unresolved hold. |
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| Who to contact | Carrier or customs contact in the notice; Mercari for marketplace issue. |
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| Delivered but not received | Delivery location, mailbox, front desk, neighbors and proof of delivery. |
View all details for delivered but not received| Likely cause | Alternate drop location, early delivery scan, misdelivery, theft, office hold or carrier error. |
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| Immediate action | Check all delivery spots, household members, front desk, neighbors, delivery photo or proof details, then contact the carrier and open the correct Mercari issue if not found. |
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| When to escalate | Escalate quickly through Mercari if the item is still missing and the transaction has an issue deadline. |
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| Who to contact | Carrier for delivery evidence; Mercari for item-not-received review. |
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| Missing item in split shipment | Package count, seller notes and all tracking numbers. |
View all details for missing item in split shipment| Likely cause | Seller sent separately, forgot an item, or package was damaged or incomplete. |
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| Immediate action | Photograph packaging and contents, message seller inside Mercari and avoid closing the issue prematurely. |
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| When to escalate | Escalate through Mercari if seller cannot resolve or item is not as described. |
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| Who to contact | Seller and Mercari. |
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| Return not updating or refund pending | Return tracking scan and Mercari return case status. |
View all details for return not updating or refund pending| Likely cause | Return package not accepted yet, carrier scan delay, return under review or refund posting pending. |
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| Immediate action | Track the return number and check Mercari case status separately. |
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| When to escalate | Escalate to Mercari if return delivery is confirmed but refund status remains unresolved under current policy. |
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| Who to contact | Carrier for return transit; Mercari for refund decision. |
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Returns, Exchanges and Refunds
Use the Mercari order issue or return workflow for return approval and refund status. Use 17TRACK only for the physical return shipment when you have a return carrier tracking number.
Returns & Refunds
| Scenario | Where to start |
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| Cancel before shipment | Order details or Mercari help route if the order is eligible. |
View all details for cancel before shipment| Who can start it | Buyer or seller depending on transaction status and Mercari rules. |
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| Identifier needed | Order number, account, seller name and reason. |
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| Return shipping/tracking | No return tracking if nothing shipped. |
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| Refund timing dependency | Depends on cancellation approval and payment method posting. |
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| Important limitation | 17TRACK cannot cancel the order. |
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| Item not as described or wrong item | Mercari order issue workflow before closing or rating the transaction. |
View all details for item not as described| Who can start it | Buyer through the purchase issue route. |
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| Identifier needed | Order number, photos, listing details, messages and packaging evidence. |
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| Return shipping/tracking | Use the return label or instructions supplied by Mercari when approved. |
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| Refund timing dependency | Depends on return approval, return delivery and case review. |
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| Important limitation | Carrier delivery confirmation does not prove the item condition. |
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| Delivered but missing | Mercari item-not-received help route and carrier delivery evidence. |
View all details for delivered but missing return or refund issue| Who can start it | Buyer account holder. |
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| Identifier needed | Order number, tracking number, address confirmation and delivery proof or missing-package evidence. |
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| Return shipping/tracking | No return tracking unless the item is later recovered and a return is required. |
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| Refund timing dependency | Depends on Mercari review and any carrier investigation. |
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| Important limitation | A refund is not guaranteed by a delivered-but-not-received report. |
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| Return shipment tracking | Return label or return instructions in the Mercari case. |
View all details for return shipment tracking| Who can start it | Buyer after a return is approved or instructed. |
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| Identifier needed | Return carrier tracking number and return case ID. |
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| Return shipping/tracking | Track with carrier or 17TRACK if a standard carrier number is provided. |
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| Refund timing dependency | Refund review usually depends on return movement, return delivery and marketplace decision. |
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| Important limitation | 17TRACK can show return scans but cannot confirm refund approval. |
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| Exchange request | Seller message and Mercari support, if the marketplace workflow allows it for the case. |
View all details for exchange request| Who can start it | Buyer and seller may discuss, but platform rules govern allowed resolution. |
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| Identifier needed | Order number, messages, item photos and proposed solution. |
|---|
| Return shipping/tracking | Use official return or reship instructions rather than informal off-platform shipping. |
|---|
| Refund timing dependency | Depends on approved case route. |
|---|
| Important limitation | Do not send extra payments or private shipping arrangements outside Mercari protections. |
|---|
|
| Gift recipient return | Buyer account holder’s Mercari order page. |
View all details for gift recipient return| Who can start it | Usually the buyer account holder because the transaction is private to that account. |
|---|
| Identifier needed | Buyer account access, order number and evidence from recipient. |
|---|
| Return shipping/tracking | Return label details should come from the official order case. |
|---|
| Refund timing dependency | Refund method normally follows the original marketplace payment path. |
|---|
| Important limitation | 17TRACK cannot transfer return rights from buyer to recipient. |
|---|
|
Customer Service and Escalation
Use the channel that matches the problem: seller messages for seller-controlled actions, carrier support for physical delivery scans, and Mercari Help Center or order issue routes for marketplace decisions.
Customer Service
| Channel | Best for |
|---|
| Mercari Help Center | Official help articles, order issues, shipping, returns and account support. |
View all details for Mercari Help Center| Where to access | https://www.mercari.com/us/help_center/ |
|---|
| Information to prepare | Order number, seller name, tracking number, account email, shipping address, latest tracking event, photos, messages and case ID. |
|---|
| Who should use it | Buyers or sellers who need platform support. |
|---|
| Important limitation | Use current official support pages for available contact options; do not rely on unverified phone numbers. |
|---|
|
| Order details / issue route | Item not received, return request, wrong item, damaged item or cancellation eligibility. |
View all details for order issue route| Where to access | Inside the buyer’s Mercari account or app from the purchase details. |
|---|
| Information to prepare | Order number, seller name, tracking, item photos, packaging photos and explanation. |
|---|
| Who should use it | Account holder for the purchase. |
|---|
| Important limitation | Issue windows and eligibility can change; follow the current order page prompts. |
|---|
|
| Seller messaging | Shipping confirmation, missing tracking, package count or seller-specific information. |
View all details for seller messaging| Where to access | Mercari transaction messages. |
|---|
| Information to prepare | Order item, purchase date, question, tracking number if visible and photos if relevant. |
|---|
| Who should use it | Buyer or seller inside the platform. |
|---|
| Important limitation | Keep communication inside Mercari; off-platform arrangements may reduce protection. |
|---|
|
| Carrier support | Delivery attempt, hold, proof of delivery, pickup location or address exception. |
View all details for carrier support| Where to access | The official carrier website shown by the tracking number. |
|---|
| Information to prepare | Tracking number, destination address, delivery notice, latest scan and proof request. |
|---|
| Who should use it | Recipient or shipper depending on carrier rules. |
|---|
| Important limitation | Carrier support cannot approve Mercari refunds or decide item-description disputes. |
|---|
|
| 17TRACK support / API | Tracking display questions or merchant tracking integration using carrier numbers. |
View all details for 17TRACK support or API| Where to access | https://api.17track.net/en/doc |
|---|
| Information to prepare | Carrier tracking number, carrier if known, latest returned tracking event and API request details if applicable. |
|---|
| Who should use it | Shoppers with a carrier number and merchants building tracking workflows. |
|---|
| Important limitation | 17TRACK is not Mercari and cannot change a transaction. |
|---|
|
Seller, Marketplace and Buyer Responsibility
Because Mercari is a marketplace, responsibility is shared. The seller controls packing and shipment handoff, the carrier controls transport scans, the buyer controls receipt verification and issue reporting, and Mercari controls marketplace review workflows.
Marketplace Responsibility
| Issue | Buyer action |
|---|
| Seller has not shipped | Message seller inside Mercari and monitor cancellation or help options. |
View all details for seller has not shipped| Platform role | Provides order status and cancellation or support workflow when eligible. |
|---|
| Seller role | Ships the item or communicates delays. |
|---|
| Carrier role | No role until package acceptance. |
|---|
| Evidence to keep | Order status screenshots and seller messages. |
|---|
|
| Seller provided wrong tracking | Ask seller to confirm carrier and number, then use Mercari support if unresolved. |
View all details for wrong tracking| Platform role | Reviews transaction evidence through support routes. |
|---|
| Seller role | Corrects or explains tracking. |
|---|
| Carrier role | Shows only events for the number supplied. |
|---|
| Evidence to keep | Tracking screenshots, carrier result and seller messages. |
|---|
|
| Item not received | Check delivery locations, carrier proof and open the Mercari issue route if still missing. |
View all details for item not received| Platform role | Provides item-not-received review workflow. |
|---|
| Seller role | May provide shipment evidence. |
|---|
| Carrier role | Provides delivery scans and proof if available. |
|---|
| Evidence to keep | Tracking, delivery photo, address confirmation and missing-package notes. |
|---|
|
| Item not as described | Document the item and use Mercari return or issue workflow. |
View all details for item not as described| Platform role | Reviews dispute under marketplace rules. |
|---|
| Seller role | Responds to claim and listing accuracy. |
|---|
| Carrier role | Only relevant if damage or shipping evidence is involved. |
|---|
| Evidence to keep | Listing screenshots, photos, packaging, messages and order details. |
|---|
|
| Return dispute | Follow the official return instructions and track the return package. |
View all details for return dispute| Platform role | Controls return approval and refund decision. |
|---|
| Seller role | Receives or responds to return issue as required. |
|---|
| Carrier role | Shows return shipment movement and delivery scan. |
|---|
| Evidence to keep | Return label, drop-off receipt, return tracking and case messages. |
|---|
|
Brand App, Notifications and Delivery Options
Mercari provides account and app-based order access. Delivery changes such as rescheduling, hold, pickup or proof details are usually controlled by the carrier after a tracking number exists.
App, Notifications and Delivery Options
| Feature | Use case |
|---|
| Mercari app order status | Check purchases, shipment status, messages and support prompts. |
View all details for Mercari app order status| Where to enable | Sign in to the Mercari app or account. |
|---|
| When it appears | After a purchase is tied to the account. |
|---|
| What it can change | May allow buyer actions such as messaging, issue reporting or return request where eligible. |
|---|
| Limitations | It cannot force carrier scans to appear. |
|---|
|
| Email or push notifications | Receive transaction and shipping updates. |
View all details for email or push notifications| Where to enable | Mercari account notification settings or Mobile DE OS notification settings. |
|---|
| When it appears | When Mercari sends transaction events or seller/carrier status updates. |
|---|
| What it can change | It can alert you to a status change faster than manual checking. |
|---|
| Limitations | Notification text may lag behind the current order page. |
|---|
|
| Carrier delivery options | Redelivery, pickup, hold or proof details when supported by the carrier. |
View all details for carrier delivery options| Where to enable | Official carrier website or app using the tracking number. |
|---|
| When it appears | After carrier acceptance and when the carrier offers delivery management for that shipment. |
|---|
| What it can change | May allow pickup, redelivery or delivery instruction changes depending on carrier rules. |
|---|
| Limitations | Carrier options do not change Mercari refund or return eligibility. |
|---|
|
| Pickup point or locker | Only if the carrier service redirects or delivers to an authorized pickup location. |
View all details for pickup point or locker| Where to enable | Carrier delivery management, if available for the tracking number. |
|---|
| When it appears | When the carrier posts held, ready for pickup or redirected status. |
|---|
| What it can change | May change where the recipient collects the parcel. |
|---|
| Limitations | Not all Mercari shipments or carriers support pickup-point delivery. |
|---|
|
Business, Seller or Developer API
A current public official Mercari order tracking API for general buyers or third-party tracking lookups is not confirmed from the official buyer help resources. Sellers should use official Mercari seller tools and help pages; developers who need parcel tracking can use 17TRACK with carrier tracking numbers.
Developer/API Comparison
| Option | Primary use |
|---|
| Mercari public order tracking API | Current public official order tracking API not confirmed. |
View all details for Mercari public order tracking API| Provider | Mercari, if officially documented for a specific program. |
|---|
| Order/tracking coverage | Not confirmed for general public buyer tracking lookup. |
|---|
| Authentication/access | Not confirmed; do not scrape private account pages. |
|---|
| Webhook/batch capability | Not confirmed. |
|---|
| Current documentation | Use official Mercari help and any seller documentation available inside authorized accounts. |
|---|
| Important limitation | Do not assume an API exists without current official documentation. |
|---|
|
| 17TRACK Tracking API | Register and monitor carrier tracking numbers from Mercari shipments. |
View all details for 17TRACK Tracking API| Provider | 17TRACK. |
|---|
| Order/tracking coverage | Carrier tracking events for submitted tracking numbers. |
|---|
| Authentication/access | 17token API key. |
|---|
| Webhook/batch capability | See official 17TRACK API documentation for available endpoints and limits. |
|---|
| Current documentation | https://api.17track.net/en/doc |
|---|
| Important limitation | Requires carrier tracking number, not Mercari order number, payment reference or case ID. |
|---|
|
FAQ
1. How do I track my Mercari order?Sign in to your Mercari account, open the purchase details, and check the shipment status. If a carrier tracking number is shown, use the carrier website or 17TRACK to view carrier scans.
2. Where is my Mercari tracking number?Your Mercari tracking number is usually in the order status area, shipment notification, or seller-provided shipping information. If only an order number appears, you still need the carrier tracking number for 17TRACK.
3. Can I track Mercari with an order number?You can use the order number inside Mercari support or order details, but it is not normally a carrier tracking number. For 17TRACK, first find the shipment tracking number on the Mercari order page or in a notification.
4. What should I do if my Mercari order has no tracking number?Check whether the seller has shipped and message the seller inside Mercari for the carrier and tracking details. If the order remains unshipped or unresolved, use the official Mercari help route shown for that transaction.
5. Why is my Mercari tracking number not updating?Tracking may not update until the carrier accepts the package or performs the next scan. Compare the Mercari order status, carrier page and 17TRACK results before deciding whether the problem is seller handoff or carrier movement.
6. How long does Mercari delivery take?Mercari delivery time depends on seller handling, shipping method, carrier and destination. Use the estimate in your Mercari order and the carrier’s tracking page rather than assuming one fixed delivery time for all orders.
7. What if Mercari says delivered but I did not receive it?First check mailbox, porch, building office, household members, neighbors, delivery photo and carrier proof of delivery. If the package is still missing, contact the carrier for delivery evidence and open the appropriate Mercari item-not-received route.
8. Can I track a Mercari return on 17TRACK?Yes, if your return label has a carrier tracking number supported by 17TRACK. Return tracking only shows the package movement; refund approval and case status must be checked inside Mercari.
9. Where do I check my Mercari refund status?Check refund status inside the Mercari order, return case or Help Center workflow. 17TRACK cannot see payment posting, refund approval or the marketplace decision behind a case.
10. How do I contact Mercari or the seller about tracking?Message the seller inside Mercari for missing shipment details, use the Mercari Help Center for transaction issues, and contact the carrier for delivery attempts or proof of delivery. Prepare order number, tracking number, seller name and photos if relevant.
11. Who is responsible if a Mercari seller has not shipped?The seller controls packing and handoff before carrier acceptance. The buyer should keep messages inside Mercari and use Mercari’s order cancellation or support workflow when the transaction becomes eligible under current rules.
12. Why can a Mercari order say shipped before the carrier has scans?A shipped or label-created status can appear before the carrier physically receives the parcel. Carrier possession is better supported by an acceptance or origin scan, so check the latest carrier event rather than relying on the label state alone.
13. Can one Mercari purchase have multiple tracking numbers?It can happen when a seller sends items separately or provides separate shipment references. Check seller messages, order details and all visible tracking numbers before reporting a missing item.
14. Can a gift recipient track a Mercari order?A gift recipient can track only if the buyer shares the carrier tracking number or an authorized order link. Private Mercari order actions, returns and refunds generally remain with the buyer account holder.
15. Does Mercari have a public tracking API?A current public official Mercari order tracking API for general tracking lookup is not confirmed. Developers should not scrape private orders; use 17TRACK API with carrier tracking numbers when parcel tracking is the goal.
16. Which carrier delivers Mercari packages?The carrier varies by seller, region, package, shipping label and delivery option. Use the carrier shown in your Mercari order or try 17TRACK carrier detection when you have the tracking number.
17. What evidence should I keep for a Mercari delivery dispute?Keep order number, tracking number, seller messages, delivery proof, photos of packaging and item condition, screenshots of carrier events and any return label or case ID. This evidence helps Mercari and the carrier evaluate different parts of the issue.
Tracking API
Use the 17TRACK API with a carrier tracking number from a Mercari shipment. Do not submit a Mercari order number, payment reference, invoice number, seller reference or return case ID unless it is also a carrier tracking number.
POST https://api.17track.net/track/v2.4/register
Headers:
17token: YourKey
Content-Type: application/json
Body:
[
{
"number": "TRACKING_NUMBER"
}
]
Notes:
- Replace TRACKING_NUMBER with the carrier tracking number from the Mercari order.
- Do not use a Mercari order number, payment ID, seller reference, invoice number or return case ID.
- If you only have an order number, first open Mercari or the order email to find the carrier tracking number.
Sources & References
17TRACK is an independent tracking platform and is not affiliated with Mercari.
