Hi,
I think it is Possible. Who told it is not possible. I hope it is possible through OMCQ.
Just change warning message to error message for Version 00, Area M7 , Message 024 or 022.
Try once and do analysis. if it is fails check below sap note
548914 and link as below
Outbound Quantity should be equal to or less than STO quantity.
Regards,
Ravindra