The inbox is where it starts
Almost every shop here begins in direct messages. Someone sees a photo, asks for the price, sends an address, and the order lives in a thread alongside a hundred other threads.
That works, right up until it does not. The break comes when you cannot remember who paid, which size you promised, or whether the customer in Mansoura is the one who refused delivery last month.
A storefront does not replace the inbox
The mistake is thinking a store means abandoning the conversation your customers already prefer. It does not. People will keep messaging you, and they should — that relationship is why they buy from you rather than a marketplace.
What changes is where the order lives. The conversation stays in the inbox; the order, the address, the size and the history move somewhere that can be counted, confirmed and shipped.
What you get back
The first thing is your evenings. Copying orders into a notebook is an hour a day that produces nothing you could not have had automatically.
The second is the ability to see the business. Which product actually sells, which one comes back, which governorate is worth advertising to — none of that is visible from a thread, and all of it is obvious from a list.