Thank you for the information. I do, however think it is a bad idea to set up the same hook (or any item) in multiple units of measure. The factories will select one of the items as their primary hook for the fly (in our case, we'll use the 1,000pk items). That will be the item that they order when they need hooks for that fly. If Umpqua gets an order for the 1,000pk item, the bulk buyer will see a report showing he needs to buy that item. He will not see that Umpqua might have (15) 100pks, which would fill the demand and get the flies delivered. The buyer will likely order 1,000pks to fill the factory's order.
This is not a made-up scenario. We basically had to set up alternate items for UOM differences when we brought in inventory from Mexico due to system limitations at the time. We did, however set up the alternate item as a "-9" variant of the original item, with the -9 indicating we would never use it in specs and we would not buy that code. Many times I noticed that Umpqua was backordering standard UOM items to the factories while sitting on -9 inventory. At least the -9 made it easy to find the inventory using the DRP, but it still caused problems with inventory and fill rates.
From a supply chain and systems standpoint, multiple items numbers for equivalent items or materials cause problems.