We are currently using PM Orders to route materials through our shop and are recording labor hours and user ID in IW37 to report operations complete. We are not able to use these work centers for P4 orders. We are also not able to record operations complete by entering labor hours in P4 orders. I've seen ZCR2 used to record pieces produced, but the parts are experimental and we do not want to create a standards for every part we are making as there are a lot and we may never make them again. How do I create work centers for P4 orders that only require labor hours as an input to complete the operation?