Minimum Order Quantity (MOQ) is the smallest unit count a supplier will accept for a single purchase order. It's set by the supplier — usually to cover their setup costs, materials minimums, or production batch sizes — and it directly shapes inventory strategy for ecommerce brands.
If a manufacturer has an MOQ of 500 units per SKU, the brand has to either buy at least 500 units or find a different supplier. MOQs are most common with overseas manufacturers (where setup costs and shipping favour larger runs), private-label producers, and custom-packaging vendors. Domestic suppliers and stock-product wholesalers usually have lower or no MOQs, but at higher per-unit costs.
MOQ is a working capital decision disguised as a procurement decision. A 500-unit MOQ at $8 per unit ties up $4,000 in inventory before a single sale. For a brand validating a new product, that cash is a real risk. Three failure modes show up regularly:
Economic Order Quantity (EOQ) is a calculation: the order size that minimises combined ordering and holding costs. MOQ is a constraint imposed by the supplier. The two often conflict — the EOQ might be 200 units, but the supplier won't accept anything below 500. Inventory planning becomes the work of either negotiating MOQ down or accepting the holding cost penalty when MOQ exceeds EOQ.
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