Hi LilyC!

To answer your question that's a yes & no. 

We create an invoice and assign the invoice to a specific job number. That's pretty common, into Customer > New Customer & Job > Hit New Job or New Customer.  The customer can order 100PCS for Job#123 but wants 50PCS per month along with the invoice, so we send 2 invoices and those 2 invoices will be for job#123.

Adjusted the items out we go into Inventroy Adjustment and for some reason, this gives me the options to write down a specific job number and shows within that job number reports. 

In Build Assembly this does not give me that option, only option it gives me is just to write down the Part# however we have for example 20 different jobs using that Part# that we build and sell. So I had a feeling that that request they asked for is impossible to complete that's why I came here hoping for a solution.