Invoice Approval rule for same requester with different BU assignment and different Lines Managers

Summary:

Hi Team,

We have a requirement for one of our clients for invoice approvals. The requirement is, that the invoice creator add the requester's name in the invoice header for different BUs as the requester has two assignments. So once the invoice is validated and initiated for approval based on requester assignment in person records, the approval hierarchy has to trigger and assign to different line managers based on Business unit.

Ex:

A is the invoice creator and B is the requester

B has two BU assignments, 1. Test BU1 and 2. Test BU2

B lines managers for Test BU1 and Test BU2 are different but both line managers are created under Test BU1