Xcode Cloud beta only available to account holder?

Our account holder got the message that we can now use Xcode Cloud via the beta. However, the developers in our organization are not able to access any Xcode Cloud features. Creating a workflow fails with the message

This operation couldn’t be completed.

Is there any additional setup required to get Xcode Cloud running on a developer machine?

Xcode Cloud beta only available to account holder?
 
 
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