Asif
the steps as follow
1. in the checking instruction, you select use calcu. profile indicator
2.in the checking control, you activate checking horizon
3. when you maintain calculation profile in the rule maintenance, you should pay attention to the following points
1. One rule can only has one calculation profile
2. In the calculation profile, you must select re. OLTP time and valid indictor and the delay days must be greater than the transportation lane duration, but it must be less than the nest calculation profile of the condition deermiantion rule and less than material master data check horizon. If the delay day is greater than the transportation lane duration, the system will confirm all quantity, if it is less than , the system can not confirm the required quanity.
if you have any question, please let me know, I will copy screen to you that I have done.