Activation of customizing objects is not supported

What causes this issue?

You want to activate one or more BC Sets, but this is not supported for
one or more of the customizing objects specified in the BC Sets, for
technical reasons.

System Response

The data for these customizing objects is not activated.

How to fix this error?

Check which BC Sets and customizing objects are affected. In a dialog
activation (transaction SCPR20), the BC Sets and customizing objects
affected are specified in the activation log and the detail display in
the <ZK>Activation Selection</> screen. To create an activation log for
a dialog activation, end the activation with the creation of a log. The
system creates an activation log automatically for background
activation. You can also call the activation log later.
In uegent cases, contact SAP.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.