i've created an export order -i've maintained excahnge rate in header-accounting tab as 40.00
i've done billing now in billling at header level exchange rate is 40.00 & at item level exchange rate is 38.00.
1. how the exchange rate at item level is geting picked up
2. when billing -accounting document is generated it's picking header exchange rate 40.00 why it's not picking item level exchabge rate 38.00 for curency conversion to INR.
3. When excise invoice is created it's picking some other exchange rate 43.00.
From where & which exchage rate system should pick up when excise invoice is created