Select a bill document header line

What causes this issue?

You selected the 'Read Bill Documents for Slected Bill Document Header'
function. This function refers to a bill document header line.
However, you have not selected a bill document header line.

System Response

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

INCLUDE ISU_KORR OBJECT DOKU ID TX

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.