Position based hierarchy invoice approval

Summary

Position based hierarchy invoice approval - Which ruleset to be used

Content

Hi,

The requirement is to setup Position based hierarchy approvals for invoice. This will be based on the Requester name selected at the invoice header.Sometimes the positions can have more than one employee attached, any one can claim and approve the invoice
Also based on the position tree , the approval will be sent out to all approvers . that means if the approval is to go to job level 3 , it will go to position that has level 1 , 2 and also 3 . All have to approve.

Clarification:-
Currently the rules have been defined at the ParallelTypeParticipantInParallelModeRuleSet