Update shipping UPS API to OAuth
UPS has implemented an OAuth 2.0 security model for all APIs and deprecate the existing Access Key-based authorisation. See https://developer.ups.com/oauth-developer-guide
A brief maintenance was performed on this instance on 2025-01-13 between 22:15 and 22:30 UTC+2.
UPS has implemented an OAuth 2.0 security model for all APIs and deprecate the existing Access Key-based authorisation. See https://developer.ups.com/oauth-developer-guide