You selected the function "&". The characteristic cannot be summarized.
Message type: E = Error
Message class: KH - CO-PA Reporting
Message number: 012
Message text: You selected the function "&". The characteristic cannot be summarized.
What causes this issue?
The definition of the report already contains a fixed value for the
characteristic "&V2&". Consequently, you cannot deactivate this
characteristic.
How to fix this error?
You can remove the fixed value using the transaction "Change report"
under menu "Goto -> Character. values".
Error message extract from SAP system. Copyright SAP SE.