Resolved after 18 hours 16 minutes, affecting Stamps.com Software (Printing Postage Using our Windows Application), on April 20, 2026.
Stamps.com Engineers have fixed the UPS postage rating and printing issues within the Windows client. We apologize for the inconvenience and thank you for your patience. If you are still having issues, please contact us.
Affected components
Update timeline
- investigating Apr 20, 2026, 10:44 PM UTC
Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to rate and print UPS shipping labels through our classic Windows client application. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.
- resolved Apr 21, 2026, 05:00 PM UTC
Stamps.com Engineers have fixed the UPS postage rating and printing issues within the Windows client. We apologize for the inconvenience and thank you for your patience. If you are still having issues, please contact us.
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