Mercari Outage History

We are addressing a security vulnerability in third-party software and may temporarily pause the Mercari app and website to install an update. Our services remain available at this time. No unauthorized access or information leaks related to this matter have been confirmed. We will post a follow-up with timing and details as we learn more. We apologize for any inconvenience and appreciate your patience.

For the customers who can't access our Help Center please contact us via email [email protected]. We apologize for the inconvenience

Some support requests may not go through right now. We're working on restoring full access and will post an update here once it's available.

What's happening Fraudsters are increasingly attacking USPS by creating counterfeit, unpaid shipping labels — a scheme known as Mailer ID (MID) fraud. This is a growing industry-wide USPS issue affecting all shipping platforms, not specific to us or your account security. As a result, some customers may see tracking updates showing delivery to an unfamiliar address. In most cases, your package will still arrive as expected. What to do - If your tracking shows an incorrect delivery address, please contact Customer Support. - If you were charged a clearly incorrect shipping adjustment, please contact us as well. Thank you for your patience.

We are investigating an issue causing delays in updating delivered orders to "Delivered" status. This is temporarily affecting ratings and order completions. Official carrier tracking remains accurate, and our team is actively working on a fix.

We're currently experiencing delays with label creation and are actively investigating the cause. We apologize for any inconvenience and appreciate your patience as we work to resolve this issue.

Some sellers may be unable to access UPS QR codes. We're currently investigating the cause. If affected, please print your shipping label instead. We're working to restore QR code access.

いつもご利用いただきありがとうございます。 台風により、配送遅延や集配停止に影響が生じる可能性がございます。 詳細は各配送会社のホームページからご確認いただけます。 ・日本郵便： https://www.post.japanpost.jp/newsrelease/pressrelease/73893205361.html ・ヤマト運輸： https://www.kuronekoyamato.co.jp/ytc/chien/chien_hp.html ※その他の配送会社の情報については、ご利用の配送会社へご確認ください ※メルカードの配送についても影響がある場合がございます ※メルカリモバイルのSIMカードの配送についても影響がある場合がございます 発送や受け取りが遅れる可能性がある場合は、商品説明への記載や取引メッセージで取引相手へご連絡をお願いします。 また、取引相手が影響を受けている地域にお住まいの場合は、商品の発送や受け取りができない可能性がございます。 取引相手と長期連絡が取れない場合は、取引を進めずに「マイページ＞ヘルプセンター」から事務局までご連絡ください。 よろしくお願いいたします。

We’re currently aware of a partial issue affecting Facebook login on the app. Some users may experience errors when trying to sign in using Facebook. If you encounter this issue, please try logging in through the Mercari website instead while we work on a fix. We apologize for the inconvenience and appreciate your patience.

We are seeing reports of prepaid USPS shipping labels being rejected at drop-off locations with messages indicating “unpaid postage.” We’ve escalated this with USPS and are actively working with them to identify the root cause. We’ll share updates as soon as we have more information. In the meantime, please reach out to Mercari customer service if you're experiencing this issue. Thank you for your patience.

We're currently investigating reported issues with auto-ratings. Thank you for your patience!

We are currently investigating a service-wide outage affecting the Mercari platform. Our engineering team is urgently working to identify the root cause and restore full functionality as quickly as possible. We sincerely apologize for the disruption and appreciate your patience as we work to resolve this issue.

We are continuing to investigate this issue.

We’re aware that some users are not receiving emails or SMS messages from Mercari. Our team is currently investigating the issue.

We’re aware that some users are encountering errors when using Zip payment. Our team is currently investigating the issue.