Change management approval policies

Hello All,

There is a requirement in change management to add one more user or group in assess state. So for this i created ui action button in ui action button i called ui page to show popup to select user/ group. And created one Script include to generate approval for that perticular user/group once they selected. It is working fine.

Now the issue is if someone approve/reject the existing approval then adhoc approvals will be no longer required and videversal if adhoc approval one approves then existing one will be no longer required. so how can i implement this that if change assignment group approves then adhoc approval should remain requested and if adhoc one approves the assignment group approval should remain requested.

Please let me know if any solution i can implement.

Thanks