Mercari Tracking

Mercari tracking follows parcels sold through Mercari, the consumer-to-consumer marketplace founded in Tokyo in 2013 that has been downloaded more than 100 million times worldwide (Mercari, Inc., 2024). Mercari does not run its own delivery fleet: it hands each sold item to a partner carrier and pulls that carrier's scans into the order page, so the fastest way to follow a parcel is to paste the carrier tracking number into the tracker on this page. Buyers can track a Mercari order, read its current status, and confirm who is carrying it, all from one screen.

How to Track a Mercari Order

A Mercari order can be followed in three distinct places, because the marketplace relays the carrier's scans rather than generating its own. Each method shows the same shipment from a different system.

1. The tracker on this page. Enter the carrier tracking number from the order and the multicarrier tracker returns the live scan history across USPS, UPS, FedEx, Yamato Transport, and Japan Post in one timeline, without needing a Mercari login.
2. The Mercari app or website. Open the purchase under "My Orders" (US) or the transaction page (Japan) and the Order Status screen shows the latest movement, the estimated delivery date, and the carrier name once the seller marks the item shipped.
3. The carrier's own site. The same number resolves on the carrier portal, which is useful when a domestic handoff issues a second number that the Mercari screen has not yet refreshed.

Mercari Order Number and Tracking Number

A Mercari purchase carries two different identifiers, and only one of them returns live delivery scans. The order number (also called the transaction ID) identifies the purchase inside Mercari's system; it appears the moment payment clears and is used for messages, ratings, returns, and refunds. The carrier tracking number identifies the physical parcel and is the only code that returns movement scans on a carrier network.

An order ID is an internal reference and cannot be tracked on a carrier site. A Mercari order number is a long numeric string (for example m12345678901 in the app or a 16-digit transaction reference), while a carrier tracking number looks like a 22-digit USPS number such as 9400 1000 0000 0000 0000 00, a 12-digit Yamato Takkyubin number printed as 1234-5678-9012, or a Japan Post Yu-Pack number. Because Mercari's Japanese anonymous-shipping options (Rakuraku Mercari Bin and Yuyu Mercari Bin) hide both names and addresses, the buyer sees the tracking number inside the app rather than on a printed label. A parcel can also be relabeled when it changes hands, so a single order can show more than one tracking number over its journey.

Where to Find a Mercari Tracking Number

The tracking number appears once the seller ships the item and the carrier accepts it, never before. The order ID is not a tracking number, so it will not return scans on a carrier site. Common places to find the carrier number include:

• The Order Status page for the purchase inside the Mercari app or website.
• The shipping or "item shipped" notification Mercari sends when the seller confirms dispatch.
• The in-app message thread, if the seller used their own label and pasted the number manually.
• For Japanese anonymous shipments, the transaction screen, where the Yamato or Japan Post number is shown in place of an address.

Mercari Tracking Number Format

Because Mercari assigns each parcel to a partner carrier, the tracking number format depends entirely on which carrier handles it. The table below lists the formats a Mercari buyer is most likely to see; only patterns confirmed by the carriers themselves are included.

Identifier	Example pattern	What it indicates / where it is seen
Mercari order / transaction ID	m12345678901 or a 16-digit reference	Identifies the purchase in Mercari, not the parcel; cannot be tracked on a carrier site.
USPS (US)	22 digits, e.g. 9400 1000 0000 0000 0000 00	Ground Advantage, Media Mail, and First-Class label parcels in the United States.
UPS (US)	1Z + 16 characters, e.g. 1Z999AA10123456784	UPS Ground and UPS economy Mercari labels.
FedEx (US)	12 or 15 digits	FedEx Ground and FedEx Ground Economy parcels, with final delivery sometimes completed by USPS.
Yamato Takkyubin (Japan)	12 digits, shown as 1234-5678-9012	Rakuraku Mercari Bin shipments dropped at 7-Eleven, FamilyMart, or Yamato counters.
Japan Post Yu-Pack (Japan)	12-digit numeric inquiry number	Yuyu Mercari Bin shipments dropped at Lawson, post offices, or postal lockers.

A cross-region forwarded order can be relabeled mid-route, so a buyer using a proxy service may hold one number for the domestic leg and a second for the international leg.

Mercari Order Status Guide

A Mercari order moves through a fixed sequence of states that combine the marketplace's own steps with the carrier's transit scans. The table below maps the buyer-facing lifecycle and what each status means.

Status	What it means
Order placed / Purchase complete	Payment has cleared and Mercari has notified the seller; the seller is asked to ship within 3 business days.
Label created / Awaiting shipment	A prepaid label or QR code exists but the carrier has not yet scanned the parcel, so no movement shows.
Shipped / Seller shipped	The seller marked the item shipped; the first carrier acceptance scan starts the live tracking timeline.
In transit	The parcel is moving through the carrier network between sorting facilities.
Out for delivery	The parcel is on the delivery vehicle for the final leg to the buyer's address.
Delivery attempted	The carrier tried to deliver but could not complete it; a redelivery or pickup follows.
Delivered	The carrier confirmed delivery; the buyer then has 3 days to confirm the item and rate the seller.
Completed	The buyer rated the transaction (or the rating window lapsed), releasing payment to the seller.
Return requested / Refund issued	The buyer opened a problem within 72 hours; a return label or refund is processed.

Why Mercari Order Tracking Is Not Updating or Not Working

Most "Mercari tracking not updating" cases are timing gaps rather than lost parcels, and each has a typical wait threshold before action is worth taking.

Awaiting the first scan. A label or QR code can exist for a day or two before the carrier records an acceptance scan, so the status sits on "shipped" with no movement. Mercari asks sellers to ship within 3 business days of purchase, so allowing that window before worrying is reasonable.

Seller marked shipped but did not drop off. Sometimes a seller confirms shipment or prints a label without actually dispatching the package. If there is no acceptance scan after a couple of days, messaging the seller through the order thread is the first step Mercari recommends.

Carrier scan delay. A parcel can be dropped off and sit unscanned until it reaches a sorting hub, which is common with UPS economy and FedEx Ground Economy handoffs to USPS. The number usually starts updating within a few days once it enters the main network.

Wrong number or using the order ID. The Mercari order ID is not a carrier number and will never return scans. Confirming the carrier tracking number on the carrier's own site rules this out.

Genuinely delayed or lost. If a US order has not arrived 15 days after shipment, a refund can be requested from the Order Status page; if there has been no scan for 30 or more days from the most recent update, a Lost in Transit claim can be filed (Mercari Help, 2024). Contact the seller first, then Mercari, then the carrier.

Which Couriers Deliver Mercari Orders?

Mercari coordinates several carriers rather than operating its own, and the carrier depends on the country and the shipping method the seller chose. In the United States, Mercari partners with USPS, UPS, and FedEx to carry prepaid-label parcels, with options including USPS Ground Advantage, USPS Media Mail, UPS Ground, and FedEx Ground Economy (Mercari Help, 2024). FedEx Ground Economy parcels are sometimes completed by USPS for the final mile to rural and APO addresses, which is why one order can show two carriers in sequence.

In Japan, Mercari's anonymous shipping runs through two carriers. Rakuraku Mercari Bin is operated by Yamato Transport (Kuroneko Yamato), with drop-off at roughly 41,000 points including 7-Eleven, FamilyMart, and Yamato counters, while Yuyu Mercari Bin is operated by Japan Post, with drop-off at Lawson stores and post offices. Both options conceal the buyer's and seller's names and addresses while still providing tracking and insurance. Sellers who choose regular, non-anonymous shipping may instead use Sagawa or a standard Yamato or Japan Post service. Buyers who also shop other resale marketplaces such as eBay will recognize the same pattern of a marketplace relaying third-party carrier scans.

How Mercari Shipping Works After an Item Sells

Mercari's signature feature in Japan is anonymous shipping, where neither party ever sees the other's address. Once an item sells, the buyer's app generates a QR code; the seller presents it at a drop-off point, staff scan it, and the carrier prints the label, so no address is written by hand (Mercari Japan, 2024). The tracking number is bound to the transaction inside the app rather than to a visible label.

In the United States the flow is simpler: Mercari creates a prepaid label for the seller after the buyer pays, the seller attaches it and drops the parcel with USPS, UPS, or FedEx, and all Mercari prepaid labels include tracking and automatic Shipping Protection. A package shipped with a Mercari prepaid label takes about 3 to 4 days on average to reach the buyer after the seller ships it (Mercari Help, 2024).

Delivery Times and Shipping Options

Mercari delivery times depend on the carrier service and the distance, and are estimates rather than guarantees. In the US, a prepaid-label parcel averages 3 to 4 days in transit after the seller ships, on top of the up-to-3-business-day window sellers have to dispatch. USPS Ground Advantage typically runs 2 to 5 business days, UPS Ground 1 to 5 business days by zone, and FedEx Ground Economy a few days longer for lightweight items because of the USPS final-mile handoff.

In Japan, Rakuraku Mercari Bin and Yuyu Mercari Bin are priced by parcel size rather than weight alone, with most domestic deliveries completing in 1 to 2 days through the Yamato and Japan Post networks. Sellers choose the size band that fits the item, and the buyer sees the chosen service on the order page. The table below shows representative size-band pricing for the two anonymous services.

Size band	Rakuraku Mercari Bin (Yamato)	Yuyu Mercari Bin (Japan Post)
60-size (small parcel)	about 750 yen	about 750 yen
80-size	about 850 yen	about 870 yen
100-size	about 1,050 yen	about 1,070 yen
Maximum weight	up to 25 kg by size band	up to 25 kg by size band

The pricing is close between the two services, so sellers usually choose by which drop-off network is nearer: Yamato through 7-Eleven and FamilyMart, or Japan Post through Lawson and post offices. Both bundle tracking and loss-or-damage compensation into the flat size-band price.

Mercari Shipping Protection and Insurance

Every Mercari prepaid label in the United States carries automatic Shipping Protection, which covers loss or damage while the parcel is in transit on a Mercari-generated label (Mercari Help, 2024). The protection does not apply when a seller buys an independent label outside Mercari, which is one reason the platform encourages prepaid labels and is also why an independently labeled parcel may show its tracking only after the seller pastes the number into the order thread.

In Japan, both Rakuraku Mercari Bin and Yuyu Mercari Bin include built-in compensation for loss or damage as part of the anonymous-shipping service, alongside the address concealment and tracking. Because the carrier label is generated from the in-app QR code rather than written by the seller, the protection is tied to the transaction, and claims are handled through Mercari rather than directly with Yamato Transport or Japan Post.

Returns, Refunds, and Cancellations

Mercari operates on a buyer-protection model with a strict 72-hour window. Once a carrier confirms delivery, the buyer has 3 days to inspect the item and either rate the seller or open a problem; rating the transaction releases payment to the seller and ends the protection window (Mercari Help, 2024).

To start a return, a buyer opens the purchase in their history, selects the transaction, and uses the "I have a problem" button. A return must be requested within 72 hours of receipt for reasons such as an item significantly not as described; once Mercari approves it and the buyer returns the item with the Mercari-provided return label, the refund is processed within 14 calendar days.

Tracking shows delivered but the item never arrived. A buyer must report a not-received parcel to Mercari within 72 hours of the carrier-confirmed delivery time. Checking around the property, with neighbors, and the exact carrier scan location first is worthwhile, then opening a problem on the order before the window closes.

Parcel returned to sender or undeliverable. A wrong or incomplete address, a missed redelivery, or an unclaimed pickup can send a parcel back. When this happens the order is resolved through Mercari rather than the carrier, usually as a refund, since the buyer cannot contact the carrier directly on anonymous shipments.

International Shipping and Customs

Mercari operates as a domestic marketplace in each country, so Mercari Japan ships within Japan and Mercari US ships within the United States; it does not offer native cross-border checkout between the two. International buyers reach Mercari Japan through third-party proxy and forwarding services, which receive the domestic parcel, then re-ship it abroad under a new international tracking number.

On that forwarded leg, the destination country's customs authority assesses any duties and import taxes, and the forwarder, not Mercari, handles the export paperwork. Because the parcel is relabeled at the forwarder, the Japanese Yamato or Japan Post number stops updating once the forwarder receives it, and tracking continues under the new international number.

What Is Mercari

Mercari, Inc. is a Japanese e-commerce company founded on February 1, 2013, by Shintaro Yamada, who launched the mobile app in July 2013 as a consumer-to-consumer marketplace for used goods (Mercari, Inc., 2024). It became Japan's first unicorn in 2016 after passing a 1 billion US dollar valuation and listed on the Tokyo Stock Exchange in 2018.

Mercari grew into Japan's largest community-powered marketplace, processing more than 10 billion yen in transactions each month, and expanded to the United States in 2014 and briefly to the United Kingdom in 2016. The group later added the fintech service Merpay and the business-to-consumer Mercari Shops, but its core remains individuals selling pre-owned items to one another, which is why its logistics are built around anonymous, app-managed shipping rather than warehouse fulfilment.

"Once the carrier informs Mercari that the item has been delivered, the buyer has 3 days to confirm the item is as specified and provide a rating." (Mercari Help Center, Refunds and Returns, 2024.)

"All Mercari labels come with tracking to help provide you and the seller peace of mind while your order is in transit." (Mercari Help Center, Shipping for Buyers, 2024.)