Mercari incident

Prepaid USPS shipping labels being rejected at drop-off locations

Notice Ongoing View vendor source →

Mercari is currently experiencing a notice incident affecting Mobile Apps and Web site and 1 more component, which began 48d ago. The vendor's full update timeline is below.

Started
Apr 30, 2026, 05:40 PM UTC
Resolved
Ongoing
Duration
● 48d 11h
Detected by Pingoru
Apr 30, 2026, 05:40 PM UTC

Affected components

Mobile AppsWeb siteShipping

Update timeline

  1. investigating Apr 30, 2026, 05:40 PM UTC

    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.

  2. monitoring Apr 30, 2026, 08:45 PM UTC

    A fix has been implemented and we are monitoring the results.