Expense Approvals for Inactive Employees

Hi,

We have below approvals setup to process expenses for inactive employee

Starting Participant: HierarchyBuilder.getPrincipal(Task.payload.Starting Participant,-1,"","")

Can someone please let me know how the starting participant is derived in the payload. We’ve observed a few instances where the approval routed to the last line manager of the inactive user, while in some cases it routed to the line manager effective on the expense report date

Any insights or documentation on how this value is determined would be appreciated

Thank you