I have a few questions related to the Order Reservation records. I noticed that the Units field is mandatory. So the item must be assigned with a units type? Or has someone tried to bypass it via workflow or script (form customization does not seem to be an option)? Any reason why a PO that is not yet received but has location assigned in the header and line level won't be considered as a future supply?

Re the units type if it is mandatory just enable UOM and create one called Each The PO you mentioned should be deemed future supply. Ensure the PO has been approved that is important.

Yeah, we could just create an each units type but it's something that can't be changed in the future, so as much as possible we don't want to do it unless it's absolutely necessary. And yes, the PO is approved. Very weird.