Mercari incident

Prepaid USPS shipping labels being rejected at drop-off locations

Notice Resolved View vendor source →

Mercari experienced a notice incident on April 30, 2026 affecting Mobile Apps and Web site and 1 more component, lasting 61d. The incident has been resolved; the full update timeline is below.

Started
Apr 30, 2026, 05:40 PM UTC
Resolved
Jun 30, 2026, 05:41 PM UTC
Duration
61d
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.

  3. resolved Jun 30, 2026, 05:41 PM UTC

    This incident has been resolved.