Condition record not determined for a condition type with multiple line items and same material....

Hi Gurus,

              Need a quick resolution for the issue I am facing currently. I have created a Sales Order, Delivery and Invoice with 2 line items having same material and different quantity (Line item 10= 5 and Line item 20= 3). We have SD condition type XXXX which determines in reference with MM Condition type ABCD condition records. ABCD condition records maintained and the first line item determined condition XXXX but not the second line item. Condition records for ABCD maintained on Vendor 123456. Both the line items having same vendor but only the first line item determined XXXX but not the second. Could you please throw some lights on this and provide your inputs for resolution.

Thanks

Kumar