No postprocessing records allowed to exist anymore for related assemblies

What causes this issue?

In the repetitive manufacturing profile, you want to change the setting
relating to the creation of individual postprocessing records.

System Response

A change to this profile setting can lead to inconsistencies in the
individual postprocessing records. This is the case if the profile is
assinged to an assembly for which postprocessing records still exist.

How to fix this error?

Please ensure that all postprocessing records for all assemblies to
which this repetitive manufacturing profile is assigned are
postprocessed. Then change the setting relating to the creation of
postprocessing records.
You are advised to make no changes to a profile already in use. Changes
should only be made when new profiles are created.

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.