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250003: Invalid Access License number
The error message “Invalid Access License number (250003)” typically indicates an issue with the UPS Access License number that you’ve entered in the plugin settings.
Please double-check the UPS Access License number in your plugin settings to ensure it’s entered correctly without any typos or extra spaces. This number should match exactly with the one provided by UPS when you registered for an API key.
If you’ve verified that the Access License number is correct and the issue persists, it may be necessary to regenerate a new Access License number from the UPS Developer Kit page and update the plugin settings with the new number.