--- title: "How to give a wholesale discount based on total cart quantity" description: "Process Wholesale cart quantity tiers discount a wholesale order by the total number of units in the cart, across any mix of products or only selected ones. Create one under Discounts > Tier Discounts with the method Total Cart Quantity, on any plan." type: how-to plans: [All plans] keywords: [ cart quantity discount, mix and match discount, total units discount, bulk order discount, buy more save more, Total Cart Quantity, order quantity tiers, case discount, wholesale volume discount, ] questions: - "How do I give a wholesale discount based on the total number of items in the cart?" - "Can a cart quantity discount count only some products or collections?" - "Does a cart quantity tier discount the whole order?" - "How is a cart quantity tier different from a quantity tier?" - "Can a cart quantity tier combine with other wholesale discounts?" last_verified: 2026-11-11 order: 5 --- # How to give a wholesale discount based on total cart quantity A cart quantity tier in Process Wholesale gives a wholesale customer (B2B customer) a discount based on the total number of units in their cart, across any mix of products, for example 5% off for 1 to 9 units and 10% off for 10 or more. You can count all products or only selected products or collections. Create it in the Process Wholesale app under **Discounts > Tier Discounts > Create new discount**, with **Total Cart Quantity** as the **Method**. It applies at Shopify checkout to logged-in customers tagged `B2B` who carry the discount tag, on every plan. This is also called a mix and match discount. **At a glance** - **Plan:** All plans. Discount count: Starter 1, Enterprise and Professional 100 (flat and tier discounts counted together). - **Where:** Process Wholesale > **Discounts > Tier Discounts**, **Method** = **Total Cart Quantity** - **Applies to:** Logged-in customers tagged `B2B` who also carry the discount tag - **Counts:** All units in the cart, or only units of the selected products or collections - **Discount per tier:** **Percentage Off** or **Price Off**, on the counted items as a group - **Applied by:** its own Shopify automatic discount, **B2B Cart Quantity Discount** ## Steps to create a cart quantity tier discount 1. In Shopify admin, open the **Process Wholesale** app, select **Discounts**, then the **Tier Discounts** tab. 2. Select **Create new discount**. The page **Create tier** opens. 3. In **Discount tag name**, enter the name of the discount, which is also the customer tag that grants it, for example `mix24`. The field starts with a suggested name such as `newtierdiscount731`. Use lower-case letters and numbers only, and do not include `b2b`. 4. In **Method**, choose **Total Cart Quantity**. The form starts on **Total Cart Value**, so change it. Changing the method resets **Applies to** to **All products**. 5. In **Applies to**, choose which products are counted and discounted: - **All products**: every unit in the cart counts - **Select individual products**, then **Select product** - **Select collections**, then **Select collection** Cart quantity tiers cannot be limited to individual variants. 6. Select **Add new tier**. A card **Tier 1** appears with these fields: - **Discount type:** **Percentage Off** or **Price Off** (an amount off). A new tier starts on **Price Off** with a discount of 40. - **Min. quantity:** the number of units where this tier starts. Whole numbers only. The first tier starts at 0. - **Max Quantity:** not editable. When you save, Process Wholesale sets it to one less than the next tier's minimum. The last tier has no maximum. - **Discount:** the percentage (`%`) or amount (`$`, in your store currency). 7. Select **Add new tier** for each further tier, and set its **Min. quantity**. 8. Check the **Summary** card, then select **Save** in the save bar. Process Wholesale sets each tier's maximum and shows "Tier created". Give the discount tag to customers from the **Customers** page, by auto-assign on approval, or with **Bulk assign discount**. See [How to assign discounts to wholesale customers](assign-discounts-to-customers.md). The tier form's validation messages are the same for every method; see [the list of tier form messages](quantity-tier-discounts.md#validation-messages-on-the-tier-form). ## What your customers see - **On product pages:** with the [Product Wholesale block](../storefront/product-page-wholesale-prices.md), a logged-in customer with a tag that contains `b2b` and the discount tag sees a cart quantity table with the columns **Minimum Cart Quantity** and **Cart Discount**, for example "1 - 9 | 5%" and "10+ | 10%". When the tier counts selected products or collections, the table appears only on those products' pages. - **In Quick Buy:** on Enterprise or Professional, customers tagged `B2B` see the tiers in the **Cart Discount Tiers** box of the [Quick Buy](../storefront/quick-buy-prices.md) form when they have no cart value tier, and the discount in the **Cart discount:** line of the order summary. A tier limited to products or collections counts only those products. - **At checkout:** the discount appears as its own discount, labeled `PW:` followed by the discount tag, for example `PW: mix24`. ## How cart quantity tiers are calculated at checkout Process Wholesale applies a cart quantity tier only when the customer is logged in (or the order is a draft order with a customer), has the tag `B2B` in any capitalization, and has the discount tag. 1. **Eligible items.** With **All products**, every line in the cart. With **Select individual products** or **Select collections**, only the lines of those products. 2. **Quantity.** The total number of units on the eligible lines, across all products. 3. **Tier.** The tier whose range contains that quantity. Above the last tier's minimum, the last tier applies. Below the first tier's minimum, there is no discount. 4. **Discount:** - **Percentage Off:** the percentage of the eligible items' total - **Price Off:** the amount, once, converted to the customer's currency 5. The discount is applied to the eligible items only. Other items in the cart are not discounted by it. **Example.** Tiers "1 to 9 units: 5% off" and "10 or more: 10% off", **All products**. The cart has 2 units at 50.00 and 8 units at 10.00: 10 units worth 180.00. The 10-or-more tier applies, so the discount is 10% of 180.00, which is 18.00. **Example with selected products.** The same tiers, limited to product 1. The cart has 2 units of product 1 at 50.00 and 8 units of product 2 at 10.00. Only the 2 units of product 1 count, so the 1 to 9 tier applies: 5% of 100.00, which is 5.00. Product 2 is not discounted. **Example in another currency.** A **Price Off** tier of 3, and the customer pays in a currency whose exchange rate is 2: 6.00 off. **With other wholesale discounts.** The cart quantity tier is a separate automatic discount from the one that applies flat, quantity, cart value and loyalty discounts. Whether both apply on the same order follows **Settings > Discount settings > Discount combinations**, where **Order Discounts** is checked by default. See [priority and stacking rules](discount-priority-and-stacking.md). **When changes apply.** A change to an existing tier applies at checkout shortly after you save. Process Wholesale re-checks its checkout discounts every 5 minutes, so a new discount tag applies within about 5 minutes. ## Limits and things to know - **One cart quantity tier per customer.** When a customer carries more than one cart quantity tier discount, only one applies. Give each customer one cart quantity tier. - **No variant selection.** **Applies to** offers products and collections, not individual variants. All variants of a selected product count. - **Whole-number quantities.** **Min. quantity** takes whole numbers. - **Plan limits.** Starter allows 1 discount, Enterprise and Professional 100, counting flat and tier discounts together. - **Quick Buy shows an estimate.** When a customer has both a cart value tier and a cart quantity tier, the Quick Buy **Cart discount:** line shows the larger of the two. Checkout shows the final amount. - **Percentages are not capped.** The tier form accepts any percentage. Enter 100 or less. - **Tag names cannot be changed** after saving, and a tag name should not be reused by a discount of another type: a customer who carries the tag gets both discounts. - **Deleting is immediate.** **Delete** has no confirmation step and removes the tag from every customer tagged `B2B`. See [Editing and deleting wholesale discounts](edit-or-delete-a-discount.md). ## Troubleshooting | Symptom | Likely cause | Fix | | ----------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- | | No cart quantity discount | The counted units are under the first tier's **Min. quantity**, or the cart has none of the selected products | Check **Applies to** and the first tier's minimum. | | The cart quantity discount applies but the flat discount does not, or the other way round | The two automatic discounts are not allowed to combine | Check **Order Discounts** under **Settings > Discount settings > Discount combinations**. See [priority and stacking rules](discount-priority-and-stacking.md). | | The cart quantity table shows on some product pages only | The tier counts selected products or collections | No fix needed. The table appears on the products the tier covers. | | Some items in the cart are not discounted | Those products are outside **Applies to** | Add the products or their collection to the tier. | ## Frequently asked questions ### How is a cart quantity tier different from a quantity tier? A [quantity tier](quantity-tier-discounts.md) counts units of each product on its own and discounts each unit of that product. A cart quantity tier counts units across all eligible products together and discounts them as a group. ### Can a cart quantity discount count only some products or collections? Yes. Choose **Select individual products** or **Select collections** in **Applies to**. Only those products are counted, and only they get the discount. ### Does a cart quantity tier discount the whole order? It discounts the eligible items. With **All products** that is every item in the cart; with selected products or collections, only those items. ### Can a cart quantity tier combine with other wholesale discounts? Yes, when **Order Discounts** is checked under **Settings > Discount settings > Discount combinations**, which is the default. See [Which wholesale discount applies: priority and stacking rules](discount-priority-and-stacking.md). ## Related articles - [Wholesale discount types compared: flat, tier, price list and cost plus markup](discount-types.md) - [How to set up quantity breaks (volume pricing) for wholesale customers](quantity-tier-discounts.md) - [How to give a wholesale discount based on cart total](cart-value-tier-discounts.md) - [Which wholesale discount applies: priority and stacking rules](discount-priority-and-stacking.md) - [How to assign discounts to wholesale customers](assign-discounts-to-customers.md)