Hi,
I’ve connected a Keycloak Server to a 10.18.0.229 Tenant and it worked for me - I was able to login and also to use keycloaks access tokens for Cumulocity API Calls. That indicates it’s not a general problem, probably more a misconfiguration somewhere.
How is the situation in your tenant? Which authorization server did you connect (Azure AD, Auth0, Keycloak, Okta, something different)? Does the SSO login work via UI? Does the login work via UI and it’s “only” the newly introduced functionality - to do API requests with the access token of your authorization server - that doesn’t work for you?
Some links that might help:
- Configure SSO for Azure AD: Administration - Cumulocity IoT Guides
- An example for Auth0: Using Auth0 as Single-Sign-On for Cumulocity IoT
- An example for Okta: Cumulocity IoT SSO Integration with Okta
- 10.18’s external token configuration: Administration - Cumulocity IoT Guides