we do need to see COGs - Maybe I can clarify a little more.
The assembly item is build with cost (cost from raw materials + labor, etc) so once its built on the WO, it has some cost associated. However my client’s process is that once that assembly item is built, they invoice the customer from the sales order. At that point, the assembly item becomes “customer owned”, thats where my client wants the assembly’s cost to go to $0 b/c they don’t want it valued on their books.
Once my client’s customer says they want that assembly item, they ship it out.
I hope that provides more insight to the process.
I’ve tired something similar with what they do now, using a customer owned inventory location; I created a TO to move it at 0.00 rate. When we invoice, it captures the financials there, and I can ship it off the same sales order, However when I look at inventory profitability, it shows 100% profit since there is no cost of the item anymore.