I have 50 units in unrestricted use stock of particular material for a storage location in the plant. I have made two outbound deliveries for this material. When I pick 50 units of this material, these 50 units i can see in schd. for delivery and in unrestricted use stock also I can see 50 units in MMBE. Now, 50 units are in unrestricted use stock, once again i will be able to do picking of another 50 units of this material from the same storage location. (there is physical variation in stock.) Now, when i will do pgi for one outbound delivery, the stock from unrestricted use will be debited and system not allow to do pgi for another outbound delivery. (we don't want to allong negative stock). Is there any way to block picking of the stock which are in schd. for delivery. Thanks in advance.