functionId &1: binding incomplete, parameterId &2 missing

What causes this issue?

The definition of ranking function &V1& defines a parameter &V2& which
is not bound to an element.

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?

Add a @Consumption.ranking.parameterBinding-annotation that refers that
parameter.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.