# USPS Tracking Delays – Payment Authorization Issue

- Provider: [Shippo](https://down.guide/providers/shippo)
- Confidence: Confirmed
- Impact: Maintenance
- lasted 5h 45m
- started 2026-11-13 15:45 UTC
- USPS
- id: DWN-9be2e41b91
- Official page: https://stspg.io/m6ngzj5mlqv4

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

[Postmortem](https://stspg.io/m6ngzj5mlqv4)

## Updates from Shippo
### 2026-11-13 15:45 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.

### 2026-11-13 21:31 UTC: resolved
This incident has been resolved.

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