Failed returns are mostly caused by an address validation issue or a setup issue in the selected route. In order to successfully create return labels with the carriers, 12Return applies a strict address validation protocol to validate the format of postal codes and phone numbers. As carriers apply their own (different) format validation protocols, 12Return applies the general internationally accepted protocol.
Failed returns have a status logistics/failed and can be re-submitted with the re-submit option.
To correct an issue, two main options are available:
Correct the customer origin address (mostly the postal code) during re-submit.
Correct a setup issue for the appropriate route (mostly the carrier service) before doing a re-submit.
The re-submit function selects the updated address and the updated route to include all changes you have made to the address and/or route.