I was wondering, Can I make the product when it is ordered?. Like I will assemble it when I get an order. Can I do that?.
As long as you can ship within 14 days I don’t see why not?
This is the classic Build to Order model. As long as you can make sure you can ship things within 14 days you are safe. This is actually how I run my store, as I keep next to no stock of anything, and rely entirely on the fast turnaround time of Shenzhen markets.