It seems if the inventory value is negative, that Zoho Inventory should not allow me to create a Package and Ship it.  

But, there seems to be nothing to stop me from doing that other than when I go to physically package the item and realize that there is no stock.

There also seems to be nothing on the screen that even indicates to me that I should not package and ship. 

To me this is the fundamental point of an inventory system. 

Am I doing something wrong?