Enter a scope of list

What causes this issue?

The scope-of-list indicator you entered is not defined in the system.

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?

INCLUDE NA_EINGABE_PRUEFEN
If you do not know the indicator, press F4 ("Possible entries") on the
field "Scope of list".

Error message extract from SAP system. Copyright SAP SE.