Where used
Which products and assemblies call for this part. Check it before you change anything about the part.
Open the part and go to the Where Used tab.
What it shows
| Column | What it means |
|---|---|
| Product | The product or assembly using this part |
| CPN | Its company part number |
| Qty used | How many of this part it calls for |
| Status | Whether that item is released |
If nothing uses the part, the tab says so. For a newly created part that is expected. For a part you were about to change, it means you can proceed without telling anyone.
What to use it for
Before changing a part number. The CPN appears on every BOM line here. See Change a CPN.
Before scrapping stock. If a product is mid build and you write off the last of a part, this is who finds out the hard way.
When a delivery slips. The list is who to warn, and the quantities tell you which of them is affected most.
When deciding what to count. A part used across several released products is worth counting more often than one used nowhere.
How this relates to the BOM view
The BOM section has its own where-used, which answers a related but different question. That one shows the full path from a top level product down through every assembly, and totals demand across every position.
This tab is the inventory side of the same relationship: which items call for this part, read from the part rather than from the tree. Use this one when you start from a part in the stockroom, and the BOM one when you start from a product.