BPM Manunal credit memo creation for specific BUs

Summary:

We are trying to restrict the rule changes in BPM to specific Business units

Content (please ensure you mask any confidential information):

We have modified the rule "HtTitle.AutomaticorManualCreditMemoCreationReque" in BPM to allow us to manually create the Credit memos after raising a dispute. However, we want this to apply only for specific business units.


Therefore I duplicated the rule and kept the automatic generation of CM in the second rule and added the IF following IF condition to my first rule:
CreditMemoHeader.buName is BU A

and for the second rule I gave the following IF condition:
CreditMemoHeader.buName isn´t BU A