Automate the OPA approval levels

Summary:

Hi Team ,

Please provide me any solution approach on OPA design

Like we have requirement where we don't know how many levels of approval will be the , Approval levels are dynamic. and in a series of approval

as of now we are fetching the approvers from Lookup (ex :- 6 levels ) May be in future user can configure the lookup and add another approver so based on that the approval email needs to send to the approver .

at each at while sending an email from human task and action taken by the approver how can i check whether the next approver is existed or not .