USPS Tracking Delays – Payment Authorization Issue

What to do

• Check whether you use Shippo USPS. Check your stack

  Drop a package.json, lockfile, Terraform or a list of domains at down.guide to see every provider you depend on.

• Check that everything you run on Shippo came back after the window closed 2026-11-13 21:31 UTC.

• Subscribe to Shippo's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=shippo works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Root cause

The cause is an issue with USPS’s Payment Authorization service.

Updates from Shippo 2

1. investigatingNov 13, 2026, 3:45 PM UTC

   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.

   provider

2. resolvedNov 13, 2026, 9:31 PM UTC

   This incident has been resolved.

   provider

Corrections

None so far.

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