Case:

Finished Good (in our case was assembly item, not production) was sold.

Later Sales Return is created based on the invoice.

All is good, until it doesn't come to the warehouse. While in the company warehouse need to put on the shelves components, not a finished good, so when they post put away it should be components.

If you explode BOM in Return, all prices will be taken from components and it will be higher amount than in original invoice, but customer need to get credit note with the same data.

___________________________

Could be a good idea to add an opportunity for warehouse do disassembly when they put away. So, it will not affect the credit note for customer, and will not take so much time for customer care and finance correct prices before they post the return, because now they should fix it before posting.