We are making a PL product that requires two of the four items to be made at separate factories in China. How do we get all three factories to communicate and combine our items into one box?And how much should we reasonably expect to pay to have this process done where all items are put together in one place from three factories?
You'd probably want to let them all know what you are planning to do. Then have the two ship their items to the one willing to pack and ship for you.
Often it does, I have already tried this in the apparel industry (because there are different process such as cutting, printing, washing, labelling etc.) and I think we rarely received an order on time
or maybe you are in China and able to watch on the SCM ?
Find a freight forwarder and ask all of your factories to ship the products to your forwarder, then ask your forwarder to collect them a ship it to your doorstep. Feel free to contact if you need help on this.