Print Pick Slip for stock shortage line

Hello there,

Seek your advice if there is a way to prevent pick slip (R42520) to print if the order line has got negative available quantity.

-- Place an order and specify the location/lot number, which doesn't have enough stock to fulfil, thus the order line split into two lines and the 2nd line is on back order

-- Jump into the order and manually update the 2nd line by changing the back order quantity to shipped quantity with the same location/lot number as the first line

-- The o-hand quantity of the location/lot number is positive while the available quantity is negative