Sales Orders - Clearing Out Hard Commitments Automatically

Is there an automated way to clear out a hard commitment on a sales order? 

Background: Our company processes thousands of sales orders lines a day in dozens of separate branches so our sales order processes are automated (order entry from EDI, print pick slip, ship confirm). We hard commit at print pick slip from a single location specified for each branch.

From time to time, this creates a situation where two orders commit the same lot/location even though there isn't enough to fill both (3 units on hand with 2 orders of 2 items each - total of 4). So, the order that can't be shipped sits in limbo until we add more inventory for that lot/location through a transfer or adjustment or until we manually fix the orders to a new lot/location record.