I'm fairly new to appsheet and I am trying to implement this code into my app. Ive successfully setup the PO side of adding inventory but I am struggling with the order side which should be the same with a different dataset-column.

I'm newish to appsheet and trying to implement this method in my app. I've successfully got the PO (Inventory In Sum) but I am struggling with the Order Side (Inventory Out Sum). In my mind they should work exactly the same but its not.This worksSUM(...