Hi,

I have Product A with pack 1, pack 2, pack3

At this moment i have stock 3000pcs on product A

I have sales order:

Product A with pack 1   - 1000pcs

Product A with pack 2   -300pcs

Product A with pack 3   -700pcs

After delivery order I have on hand:

Product A 1000pcs

How could i keep the stock on each product and packaging? 

For ex: if i update product stock by import quantities to have:

Product A with pack 1   - new qty pcs

Product A with pack 2   -new qty pcs

Product A with pack 3   -new qty pcs