No selection possible

What causes this issue?

The selection of purchasing documents was not successful.
Possible causes:
No documents exist that fulfill the selection criteria
and/or
One or more purchasing documents were processed by other users, were
therefore blocked, and are therefore not available for processing.

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?

Check your selection criteria.
and/or
Start the transaction again at a later point.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.