Replacement value proc. &1: Determined profiles are not unique

What causes this issue?

This replacement value procedure copies replacement values from
reference profiles. Only one reference profile can be determined for
each interval in the replacement period.
Profile &v2& was determined as a reference profile from &v3& to &v4&.
However, other profiles have been determined as reference profiles for
this period.

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?

Procedure for System Administrators

Check Customizing settings for this replacement procedure. To do this,
choose |@KQ@ or |@0Z@.

Error message extract from SAP system. Copyright SAP SE.