USPS Label and Packing Slip Updates

Incident Report for ShipStation

Monitoring

If your USPS labels or packing slips look different, that’s expected. We’re updating how we connect to USPS. Your labels are still valid, and no action is needed to continue printing.

Posted Nov 12, 2026 - 09:50 CST

This incident affects: Carriers (Stamps.com, Endicia).