I've followed the other posts but cannot resolve this issue:
My playground expired before I could complete the trail.
When I create a new playground, it does not include an activated Data Cloud instance.
Specifically, I cannot complete these instructions from
Enhance Agentforce to Act on Data with Conversational Language:
5. For Data Source, choose Data Cloud Object.
6. For Data Space, choose default.
7. For Object, choose Unified Link Individual ccid.