Automatic lines will not be generated in restriction ID &1

What causes this issue?

Automatic lines will not be generated when you choose restriction id
&v1& for your process. If you only do some operations on the top node,
the automatic lines will not be generated.

System Response

Processing stops.

How to fix this error?

Unmark the field 'Automatic Generation' or choose another restriction.

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.