Traceability - Production

Hi All,

I have a question about TRACEABILITY.

Scenario like this : Create Prod Order to make item 123 (as finished good/FG), qty : 2. For this 2 FG, i give them serial number are FG-00174 & FG-00175.

Prod BOM to make item 123 is item ABC, qty : 1. This item ABC i give them serial number too, and when i see stock at warehouse, i got 2 item ABC which one have serial number RM-0001 and one have serial number RM-0002.

Then, do consumption journal and do Output Journal with full qty.

Finally, i go to modul Manufacturing | History | Item Tracing to track item 123. I fill this menu with this criteria :
Field Serial No filter : FG-00174
Show Components : All
Trace Method : Usage --> Origin

then NAV show us : all the consumption, 1 RM-0001 and 1 RM-0002.

My question is : how can i do tracking if i want to know if item 123 which have serial : FG-00174 use 1 RM-0001? because depend on my information above, NAV show us all the consumption in one Prod Order, so when you want to tracking item FG by detail, u don't know exactly, but u assumed.

My client don't want to traceability like this. They want more detail which i mentioned above.

I have one solution now to make traceability that my client want to, and the solution is every Prod Order must have qty : 1. After we discuss about this, they think it not possible if one Prod Order must only have qty 1.

any advice for you guys for this issue?

Thanks.