Carrier - GLS Troubleshooting Tips

Overview

If you are receiving an error messages related to the GLS shipments, the article provides the troubleshooting tips to help you resolve the issues.

Error messages

Insufficient permissions for the API product plus

What does it mean

The error indicates that you have no sufficient permission to use the GLS Shop Returns Customer Plus API v3.

How to solve

Please follow the developer guide to setup the expected permission with GLS team.

If you have any further questions, feel free to contact our support team via live chat or email us at support+shipping@aftership.com.

Updated on: 12/09/2025