USPS Tracking Delays – Payment Authorization Issue

Incident Report for Shippo

Resolved

This incident has been resolved.

Posted Nov 13, 2026 - 21:31 UTC

Investigating

We are seeing errors when purchasing USPS labels. The cause is an issue with USPS’s Payment Authorization service. USPS has confirmed the issue and their team is investigating and working on a fix.

USPS tracking is affected. You may see delayed or missing tracking updates for USPS shipments, and tracking webhooks may arrive late. Once the issue is fixed, tracking updates will catch up and fill in.

USPS label purchases are not affected. Our fallback is in place, so you can keep buying USPS labels as usual. We are in touch with USPS and watching the issue closely.

Posted Nov 13, 2026 - 15:45 UTC

This incident affected: Carrier API (USPS).