LC3 exchange rate difference not posting to PPV while doing MIGO

Hello All,

Scenario - While performing intercompany transaction, PO is created and Invoice receipt is posted first via Idoc before goods receipt. Once the goods are received in factory after 2 or 3 months MIGO will be performed. ZIN rate will be changed & M will be constant.

difference between ZIN (LC3) is not posting in PPV account maintained in KDM transaction key in OBYC.

System config -

OB22 -

LC = INR (10) = M exchange rate type

LC2 = USD (30) = M exchange rate type

LC3 = INR (40)= ZIN exchange rate type

M = constant over the year

ZIN - Changes per month

Could you please advise?