Account Determination for Account Payables

I have defined my own chart of accounts and configured for purchase transactions. I have done settings on my own only.

I am able to post GRN to the correct accounts with (BSX & WRX).

When i try to post Incoming invoice it is not posting the amount to the supplier rather issuing a message (Account determination for entry Company code DIF not possible).

As i assign the price difference account in DIF the amount is posting to this account rather to the supplier reconciliation account.

Kindly let me know the solution