V.21 does not give delivery creation log for all Sales Orders
I am creating Deliveries in background Job. When I see v.21 log it gives the log for all the sales orders which appears in VL10A and whose Material availability date falls today. However sometime I notice a couple of Sales orders which appears in VL10A does not appear in V.21 log.
So I can find the reaon why it has not been selected by batch Job ,though it is due for delivery according to VL10A.
Looking for Experts opinions.