RE: How to handle a purchased ordered item that is split into two item numbers
So, I ran a test in Fabrikam.
1) I setup two items (components) in inventory, 1AA, and 2AA. I assigned both of these items to vendor ADVANCED0001 (Advanced Office Systems) and set the vendor item number as V-AA for both - yes, apparently, GP does allow you to have more than one item in your inventory assigned to the same vendor item number. Not bad!
2) I created a PO for items 1AA for 10 units, and 2AA for 10 units (presumably you are ordering a bag where this stuff all comes together in pairs). Here's the beautiful thing: when I printed the PO, and although the it showed two line items, it showed the SAME vendor item number, for each component. It was pretty clear (to me at least) this was referring to 10 units of component 1AA and 10 units of component 2AA and that the vendor would understand that this is referring to their one part number called V-AA and that your are requesting 10 units of item V-AA -- again, just a BIG assumption on my part.
3) I then went ahead and received the PO -- no problem here.
4) I then went ahead and created a decrease transaction for 6 units of component 2AA, assuming they are going to be customized. In the meantime, I setup a BOM called X-AA (because, why not) where I included a product called CUSTOM-2AA and 1AA.
5) I then created an increase transaction for 6 units of CUSTOM-2AA, assuming they were back from the custom vendor/manufacturer. This increase reflected the cost of customization.
7) I proceeded to create an assembly transaction for X-AA, taking 6 units of 1AA and 6 units of CUSTOM-2AA and Dynamics GP beautifully told me that tI had 6 units of X-AA after I was done, showed I still had 4 units left of 1AA and showed I still had 4 units of 2AA.
Again, this may or may not be the process you follow today, but it sure did work for me. I may even create a video blog about this stuff!