In case the customer wants the item, but the item is not yet finished the quick number. I need to do to balance order with the manual method, make time to work.
If the customer wants the product to produce a finished product, but now is not the full amount the customer wants. The need to balance order with the time consuming manual work.
If the customer need the goods urgently, but also produce finished goods not by number of customers want to have to balance order ways. Manual wasting time at work.