Sales Order Import with Promotion Goods modifier

Hi,

I am trying to import sales order lines with applied promotion modifier (of type "Promotion Goods"), this promotion should result in another item to get added to the sales order (promotion of type "Buy x get y free").

I am trying out a way where I don't need to mention the second item on the interface line (the one wich customer gets for free) however it should get derived and added to the sales order.

I tried to apply this modifier in the price adjustments interface table (OE_PRICE_ADJS_IFACE_ALL), even though an entry gets created in the base table OE_PRICE_ADJUSTMENTS after import, it does not result in addition of second item to the sales order (the free item or the item with promotional price).