you can define free good condition record based on Quantity then it is only one time calculation that you just devide Sales order Value with material Quantity . for example : If Material Price is 2000 then if you multiply with Qty of 100 then the total Sales order Value become 2Lakh.. So you can maintain Condition through VBN1 and define If order Qty is 200 then get Free Material 'B'....
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