This combination can work for a single order, but it has a structural problem: nothing accumulates from each transaction. Customer preferences on specifications, concessions made during negotiation, how many versions the quotation went through, which MOQ threshold made the buyer hesitate—this information scatters across different people's inboxes and chat histories. The next time you meet the same buyer, you almost have to start from scratch. There's a more practical issue: when the person managing this customer leaves, the relationship and context go with them. If you centralize inquiries, quotations, and orders in one place and keep version records every time you send something out, then comparing two versions shows exactly what changed. These accumulated records become organizational assets, not just personal memory.