Downgrading a product

Hi,

We have a business scenario where if the the finished good package(drum) is damaged then business follow the downgrade process i.e. they take the finished good and then fill it in another drum as this involves costs and business wants to track this downgrade cost they create a work order and then they attach the part list and routing interactively and process this.

for example:

Finished good item- 1001013, UOM- pcs

1001013 BOM:

Since the drum is damaged business creates a filling work order for downgrading 2 pcs with part list as below

Here you can see that we will use 1001013 in the part list as we require the same in order to fill it in another drum and the packing materials.