Scheduled Upstream USPS API Maintenance

Scheduled for Nov 15, 03:00 - 07:30 PST

Scheduled

USPS will be performing scheduled maintenance on Sunday, November 15 from 6:00 AM to 10:30 AM ET (3:00 AM - 7:30 AM PT), with an outage expected from 6:00 AM to 9:00 AM ET (3:00 AM - 6:00 AM PT). During this window, USPS authentication and payment authorization may be unavailable, so USPS API requests, including label purchases, may fail intermittently.

Posted Nov 10, 2026 - 08:49 PST

This scheduled maintenance affects: Carriers (USPS APIs).