I received the following email from UPS and wanted to know if Linnworks is aware of the upcoming changes:

On 5 June 2023 UPS began the sunset process for access key authentication in favour of the more secure OAuth 2.0 model for all APIs.
This change impacts all API integrations and requires updates to your existing application interface.
If your integration is managed by a 3rd party, please contact the provider.
The migration guide linked below can help answer questions about the transition from access keys to OAuth 2.0.


We are aware of the recent updates to UPS API and are actively working to implement these changes.

At this time, no action is required from the customers. Should this change, we will contact you to guide you through any necessary steps. 

We will keep you informed of any upcoming changes and ensure that the system will work as expected.

If you have any questions, feel free to get in touch with Linnworks Technical Support!