Scheduled Upstream USPS API Maintenance

Scheduled for Nov 12, 17:00 - 21:00 PST

Scheduled

USPS will be performing scheduled maintenance on Thursday, November 12 from 8:00 PM to 12:00 AM ET (5:00 PM - 9:00 PM PT). During this window, USPS authentication, domestic and international label purchases, and tracking may experience brief, intermittent disruptions, and USPS API credential refreshes may be delayed. Rates, SCAN forms, and pickups are not expected to be affected.

Posted Nov 10, 2026 - 08:48 PST

This scheduled maintenance affects: Carriers (USPS APIs).