HI Amit,
for point 1).
As far as i remember, this is an arrangement with the Customs authorities that one material code (component) can be declared for re-export (as part of finsihed goods) without a precise check/track if the compoenents contained in this FG are procured domestically or imported. Both sources can be mixed during the production transformation.
there is a flag in the IPR licence in GTS; Equivalence principle.
Besides that, maybe on the Stock overview for a product there maybe a field as well, but i dont think you need further settings in the system.
The important is that the products procured domestically are entered in a non IPR Storage location and the imported components are received in an IPR storage location. The finished goods could be all stored in the IPR storage location - the imported and domestically procured components are mixed. During re-export, the sales is picking from the IPR storage location, the system can't consume more components than what was initially received in the IPR storage location. This ensures there is no abuse. This is how i have proceeded with the Equivalence principel for IPR.
I am not sure this helps you.
I hope so
Kind regards
Assen