Diagnosis
To be compatible with SAP ERP, the text field for calculation rule &V1&can only be filled with one character. In SAP CRM, the text field canalso have three characters.
For example, 'B ' is allowed, but 'BB ' or 'BBB' is not.

System Response
Processing is canceled.

Procedure
Contact your system administrator.

Procedure for System Administration
Contact the SAP Support Line.