Entry 1000 DIF not possible in my cocd although working in other co. codes

Dears Kindly help me regarding the following issue; I get the following error message while posting MIRO, and I know actually that GL account is missing in OBYC, transaction DIF, however, when other company codes do the same with same difference % it posts automatically to the price difference GL maintained in OBYC, tansaction PRD. And I don't want to change the way they post.

Account determination for entry 1000 DIF not possible

Taking into consideration that I use the same valuation classes and materials are costed on average basis.

example of my case;

PO: 1000.5

inv: 700

warranty 100 (deliver cost, accrual)

tax: 100.2 (deliver cost)

warranty tax: 100.3 (deliver cost)

MIGO :

inv: 800

GR/IR: -700

warranty: -100

MIRO:

vendor: -1000

GR/IR: +700

warranty +100

tax: +100.2

warranty tax: +100.3

The .5 difference gives the error of DIF.