Transferred MR document numbers do not exist

What causes this issue?

The error occurred when the method <LS>EnterReadingDocsDocno</> was
called. The meter reading documents either do not exist in the system
or have already been entered.

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?

Determine via monitoring whether the meter reading document exists.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.