When submitting a Data Change Request (DCR) to inactivate the parent affiliation, it is auto-rejected by the Network system. An error appears in the Resolution Notes:
System rejected - An inactive affiliation cannot be set as primary. Please update the affiliation status before setting it as primary.
This is working as design. The primary affiliation cannot be set to inactive by DCR.
Set the Primary Affiliation to No and the Status to Inactive when submitting the DCR.