MM_SFWS_SC1 switch is not active

What causes this issue?

Execution of the COMPLAINT BAPI is only allowed if the MM_SFWS_SC1
switch is activated.

System Response

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

How to fix this error?

Procedure for System Administrators

Activate the MM_SFWS_SC1 switch by switching on the relevant business
function.

Error message extract from SAP system. Copyright SAP SE.