Enter the source location

What causes this issue?

You have defined that only requirements or receipts of a particular
source location are to be selected ('Location' radio button in input
area 'Source'). However, you have not entered this location.

System Response

The system cannot select the location.

How to fix this error?

Enter a source location or define that the system is to select from all
source locations (radio button 'All').

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.