Time Card Approval should be sent to Line Manager at any time

Summary

Time Card Approval should be sent to Line Manager at any time

Content

Hi guys,

We have a requirement that every time card approval should go the the employee's Line Manager.

I understand that the process linked to that is the "Project Time Card Approval" in Approval Rules (Transaction Console)

I tried changing the "Management Hierarchy" item on "ProjectManagerRule" to copy the one from the "LineManagerRule", so that in every cases the approval goes to the Line Manager but it didn't work, the approval still goes to the Project Manager.

I see that many people on CC have already done it but i don't see a request with the explanation on how to do it.