Imagine running a factory that makes custom glass bottles. It takes a lot of time, energy, and money to turn on massive machines, heat up furnaces, and set up molds. If a customer walks in and wants to buy just one single bottle, cost of running machine for that single run would make you lose money. To prevent this, businesses set a minimum order quantity, often shortened to MOQ.

Minimum order quantity is a rule that says a buyer must purchase a specific number of items before shop will accept order. For instance, manufacturer might set an MOQ of one hundred units for custom bottles. If you try to buy ninety-nine, system will not let you check out.

Online stores use this tool to ensure every processed order remains profitable. It covers setup costs, packaging, and labor required to ship goods. While common in manufacturing and wholesale B2B portals, retail stores also use lower MOQs for small items, like requiring you to buy at least five personalized pens so order is worth cost of shipping box and staff time.