Field help (POHBETFCY) 

This information cannot be modified and specifies whether the order has the type 'inter-site'.
When the order concerns an inter-site supplier (site of the same company) it cannot be invoiced.

SEEINFO Note:
In the case of an inter-site order, the calculation of the purchase cost and of the stock cost does not take into account the line amount, non-deductible taxes and invoicing elements.
For the stock cost calculation, the invoicing elements can be taken into account. To do so, set the
BETFCYCST - Integration of invoicing elementsparameter to Yes (ACH chapter, COS group).