Error when customer fulfills an order using USPS Global Priority Mail: “Unable to retrieve International Label barcode number: Error returned from International Label API: From First and Last Name are required.”

  1. Check the USPS setup in Setup > Accounting > Shipping.
  2. Take note of the location set in the USPS Account.
  3. Navigate  to Setup > Company > Locations.
  4. Click Edit on the location specified in the USPS Account setup.
  5. On the Address subtab, specify a First Name and Last Name in the Attention field.
  6. Click Save.

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