Start by naming the unit of the rule.
Minimum order quantity, often shortened to MOQ, describes the smallest purchase a seller will accept under a particular rule. The important part is the scope. A minimum across the whole order is different from a minimum for one style, one color or one size.
A retailer could meet an order-value minimum while still choosing too few units of an individual color. A retailer could also buy many units in one size without meeting a fixed pack ratio. State each applicable rule separately so the buyer knows which combinations are valid.
| Rule | What it controls | Illustrative wording |
|---|---|---|
| Order minimum | The complete purchase | Opening orders start at $500 before freight. |
| Style/color minimum | One product and color combination | At least 6 units of this style in Navy. |
| Per-size minimum | Each selected size in one color | Start with 12 units in every size you select. |
| Quantity increment | How a valid quantity increases | After 12, add in increments of 6. |
| Fixed prepack | An exact size assortment | 6 units: S/M/L/XL in a 1/2/2/1 ratio. |
These are examples of different business rules, not a claim that every rule is automatically enforced by every platform.
Open-size ordering: the buyer chooses the size mix.
With open-size ordering, the retailer selects quantities for individual sizes. A brand may still require a minimum for each selected size. This is useful when the buyer needs a specific size curve rather than a fixed assortment.
For example, suppose Navy tees have a minimum of 12 units per selected size and an increment of 6 after the minimum. The buyer may leave Small at zero and order 12 Medium, 18 Large and 12 Extra Large. That order contains 42 units. A quantity of 15 Large would not follow the six-unit increment.
If the rule applies separately to each color, switching from Navy to Black starts a separate set of quantities. Do not assume that six Navy and six Black satisfy a twelve-unit minimum that was defined per size and color.
Fixed prepacks: the size assortment moves together.
A fixed prepack is a defined bundle of sizes. If a six-unit pack contains S/M/L/XL in a 1/2/2/1 ratio, adding one pack adds all six units together. Adding a second pack repeats the same ratio instead of letting the buyer choose a different mix.
At $20 wholesale per unit, one six-unit pack costs $120. Three packs contain 18 units and cost $360 before any separately confirmed freight or tax. The displayed quantity should make clear whether the buyer is choosing packs or individual pieces.
| Packs | S | M | L | XL | Total units |
|---|---|---|---|---|---|
| 1 | 1 | 2 | 2 | 1 | 6 |
| 2 | 2 | 4 | 4 | 2 | 12 |
| 3 | 3 | 6 | 6 | 3 | 18 |
A prepack is a sales rule as well as a visual control. The submitted order should be checked for the complete ratio, not merely for a total divisible by six.
A minimum and an increment answer different questions.
The minimum answers “What is the first allowed quantity?” The increment answers “How can I increase it?” A minimum of twelve with an increment of six gives a sequence such as 0, 12, 18, 24 and 30. Zero means the buyer has not selected that size.
This distinction matters for plus and minus buttons. Starting from zero should take the buyer to the first valid amount. Decreasing from the minimum should remove the selection rather than leaving an invalid partial quantity. A fixed prepack control should add or remove a complete pack.
The user interface is only the first check. The server should validate the submitted order too, because quantities can also arrive from a stale page, a restored cart or an altered request. Clear feedback should identify the product and the rule that needs correction.
Set rules from the business process, then test them.
Use the quantities your warehouse and sales office can actually support. Do not invent a lower minimum simply to make a digital demo feel easier; the mismatch will show up when the order needs to ship. If rules vary by style or color, document those differences before entering the catalog.
Test the smallest order, an additional increment and a removal back to zero. Then try an invalid quantity and a partial pack. Review the resulting line items to make sure the office sees sizes and quantities, not just a pack count without its contents.
SHOWROOM4K’s product rules support per-size minimums and increments or fixed prepacks. The buyer controls and order submission checks work from those saved rules. Any broader order-value policy or custom exception should be confirmed separately rather than assumed.
Explain the rule where the buyer chooses the quantity.
Put the minimum beside the size selector or pack control, not only in a general terms page. Use “12 per selected size and color” when that is the rule, or “6-unit pack, S/M/L/XL: 1/2/2/1” for a fixed prepack. A short example is often easier to understand than an abbreviation.
Keep the unit price, pack total and order total visually distinct. Let the buyer review the final style, color and size quantities before submitting. If your team allows exceptions, give buyers a contact route instead of encouraging them to send an invalid order.
Before sharing a collection widely, ask a representative and someone from the office to place the same sample order. They should interpret the rules the same way and arrive at the same units and subtotal.
Common questions
Does MOQ always apply to the whole order?
No. It can apply to an order, product, color or size. The seller must state the scope clearly; a number alone is ambiguous.
Can a buyer change the size ratio of a fixed prepack?
A fixed prepack keeps its saved ratio. A different size mix requires a different approved ordering rule or a separately agreed exception.
Does removing one pack remove one item?
No. Removing a pack removes its full assortment. In a six-unit 1/2/2/1 pack, that means removing six pieces across the four sizes.