Explanation:
Material u2018Mat1u2019 Stock is 50 pieces. Reservation for the date 13.08.08 is 5 pieces.
Reservation for the date 14.08.08 is 15 pieces (i.e Manual reservation done in MB21 for particular cost center.)
Now the total reservation is 20 pieces.
So System should not issue the material more than 30 pieces ( i.e 50 - 20 = 30. ).
But in current status it is allowing to issue more than 30 pieces.
Q) By User exit is it possible to restrict issue quantity against reservation.