Equipment tracking in OTM

Summary:
Customer has the following requirement: It should be tracked how many pallets have been sent to a customer, and if some come back, they should be added to the stock again (this can be done manually).

Is it possible to create a kind of bucket list in OTM, e.g. named pallets, and record the number there? As soon as a shipment has been created from an order release and this shipment contains a pallet, the number of pallets in the bucket list is reduced.