When I try to generate a shipping label for USPS, the following message pops up when I click the 'Generate' button:
"Error retrieving the shipping label: API Authorization failure. User (*my user account) is not authorized to us API DeliveryConfirmationV3."
Can anyone tell me what setting I'm missing?
Thank you!
"Error retrieving the shipping label: API Authorization failure. User (*my user account) is not authorized to us API DeliveryConfirmationV3."
Can anyone tell me what setting I'm missing?
Thank you!
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