unable to create a change request with ZMCR

Hi Experts,

we are unable to create a Change Request with the Transaction Type ZMCR.

We get the Error Message:

In Solman Setup 3.5 - Maintain Transaction Type:

The Z-Transaction Type are get the Channel "CRM UI".

The S-Transaction Type get the Channel "None"

All S-Transaction Types are copy in Z-Transactions Types.

Kindley let me know if anyone have any idea!

Thanks a lot!

Beate