---
title: "How to set up quantity breaks (volume pricing) for wholesale customers"
description: "Process Wholesale quantity tiers lower the price of a product the more units of it a wholesale customer buys. Create one under Discounts > Tier Discounts with the method Individual Product Quantity, on any plan."
type: how-to
plans: [All plans]
keywords:
  [
    quantity breaks,
    volume pricing,
    volume discount,
    tiered pricing,
    bulk pricing,
    quantity discount,
    price breaks,
    buy more save more,
    Individual Product Quantity,
    wholesale quantity tiers,
  ]
questions:
  - "How do I set up quantity breaks for wholesale customers on Shopify?"
  - "Do different variants of a product count toward the same quantity tier?"
  - "What happens when a customer buys fewer units than the first tier?"
  - "Can a quantity tier set a fixed price per unit?"
  - "What does the customer see on the product page for quantity breaks?"
  - "Do different products count toward the same quantity tier?"
  - "Do I set the maximum quantity of each tier?"
last_verified: 2026-11-11
order: 3
---

# How to set up quantity breaks (volume pricing) for wholesale customers

A quantity tier in Process Wholesale gives a wholesale customer (B2B customer) a bigger discount on a product the more units of that product they buy, for example 10% off for 1 to 9 units and 20% off for 10 or more. Create it in the Process Wholesale app under **Discounts > Tier Discounts > Create new discount**, and choose **Individual Product Quantity** as the **Method**. It applies at Shopify checkout to logged-in customers tagged `B2B` who carry the discount tag, on every plan. Quantity tiers are also called quantity breaks, volume pricing, bulk pricing or price breaks.

**At a glance**

- **Plan:** All plans. **Select individual variants** needs Enterprise or Professional. Discount count: Starter 1, Enterprise and Professional 100 (flat and tier discounts counted together).
- **Where:** Process Wholesale > **Discounts > Tier Discounts**, **Method** = **Individual Product Quantity**
- **Applies to:** Logged-in customers tagged `B2B` who also carry the discount tag
- **Counts:** Units of the same product in the cart, all eligible variants together
- **Discount per tier:** **Fixed Price**, **Percentage Off** or **Price Off**, per unit
- **Applied by:** the Shopify automatic discount **B2B Order/Loyalty Discount**

## Steps to create a 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 `case12`. 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 **Individual Product 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 the tiers cover:
   - **All products**
   - **Select individual products**, then **Select product**
   - **Select collections**, then **Select collection**
   - **Select individual variants**, then **Select variant** (Enterprise or Professional; on other plans the option cannot be selected)
6. Select **Add new tier**. A card **Tier 1** appears with these fields:
   - **Discount type:** **Fixed Price** (the customer pays this price per unit), **Percentage Off** or **Price Off** (an amount off each unit). A new tier starts on **Price Off** with a discount of 40.
   - **Min. quantity:** the number of units where this tier starts. The first tier starts at 0. Whole numbers only.
   - **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** again for each further tier. Each new tier starts at the previous tier's minimum plus 1; change **Min. quantity** to the quantity you want. To remove a tier, select the delete icon on its card.
8. Check the **Summary** card, which lists each tier with its discount, for example "10+: 20% off" for the last tier. Then select **Save** in the save bar. Process Wholesale sets each tier's maximum, shows "Tier created" and returns to the list.

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).

**Example setup.** Tier 1: **Percentage Off**, **Min. quantity** 1, **Discount** 10. Tier 2: **Percentage Off**, **Min. quantity** 10, **Discount** 20. Process Wholesale saves the ranges 1 to 9 and 10 or more.

### Validation messages on the tier form

| Message                                                                                | Cause                                                                                                      |
| -------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| Please enter a discount tag name.                                                      | **Discount tag name** is empty                                                                             |
| 'B2B' and its variations are not allowed                                               | The name contains `b2b`                                                                                    |
| A tier discount with the tag name "x" already exists. Please use a different tag name. | Another tier discount already uses the name                                                                |
| Please add at least one tier range.                                                    | No tier was added                                                                                          |
| Tier 2 minimum value (5) must be greater than Tier 1 minimum value (10).               | A tier starts at or below the tier before it                                                               |
| Selected items are missing. Please select at least one product.                        | **Select individual products** with nothing selected (or "collection." / "variant." for the other options) |

The error banner ends with "If you need help, contact our support at support@casualecommerce.com."

## 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 table with the columns **Minimum Cart Quantity**, **Discount** and **Wholesale Price**, one row per tier. For a 20.00 product with the example setup, the rows read "1 - 9 | 10% | $18.00" and "10+ | 20% | $16.00". A **Fixed Price** tier shows the fixed price in both columns. The theme's own price stays the regular price.
- **In Quick Buy:** on Enterprise or Professional, customers tagged `B2B` see the price for the quantity they enter in the [Quick Buy](../storefront/quick-buy-prices.md) form, and the discount column lists every tier, for example "1-9 10% off" and "10+ 20% off". Quick Buy counts all rows of the same product together: 12 units of a 10.00 product show 8.00 each, 96.00 for the row.
- **At checkout:** the discount is applied to the order, labeled `PW:` followed by the discount tag names.

## How quantity tiers are calculated at checkout

Process Wholesale applies a 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. **Quantity is counted per product.** Process Wholesale adds up the units of each product in the cart, across all its variants that the tier covers. 6 Small and 6 Large of the same T-shirt count as 12. Variants outside a **Select individual variants** selection are not counted, unless one of the customer's flat discounts covers them.
2. **The tier is the one whose range contains that quantity.** Above the last tier's minimum, the last tier applies.
3. **The discount is per unit:**
   - **Percentage Off:** unit price × percentage ÷ 100
   - **Price Off:** the amount, converted to the customer's currency
   - **Fixed Price:** unit price minus the fixed price, so each unit costs the fixed price
4. **Line discount** = per-unit discount × quantity. All flat and tier discounts on the order are added together and applied as one discount.

**Example.** A 20.00 product with the example setup. The customer buys 12 units: Tier 2 applies, 20% off is 4.00 per unit, 48.00 off in total, and the customer pays 192.00. With 5 units, Tier 1 applies: 2.00 off each, 10.00 in total.

**Fixed Price example.** A tier "10 or more, **Fixed Price** 15" on a 20.00 product: 5.00 off each unit, so each unit costs 15.00.

**Example with a cart value tier.** Tier "0 to 5 units, 40% off" on product B only. The cart has 2 of product A at 949.95 and 3 of product B at 885.95. Product A gets nothing. Product B gets 40% off: 354.38 per unit, 1,063.14 in total. The customer's cart value tier (13.00 off below 101, 24.00 off from 101) then adds 24.00, for a total discount of 1,087.14. See [cart value tiers](cart-value-tier-discounts.md).

**Flat discount or quantity tier.** When a product is covered by both a [flat discount](flat-discounts.md) and a quantity tier, only one applies. **Settings > Discount settings > Tag priority** decides: **Prefer flat tag** (the default) or **Prefer tier tag**. Checkout follows **Tag priority** only after the **Settings** page has been saved once; until then it behaves as **Prefer tier tag**. See [priority and stacking rules](discount-priority-and-stacking.md#flat-discount-versus-quantity-tier-the-tag-priority-setting). With a flat 10% on all products and a tier "10 or more = 20%", buying 12 units gives 10% with **Prefer flat tag** and 20% with **Prefer tier tag**.

**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

- **Plan limits.** Starter allows 1 discount, Enterprise and Professional 100, counting flat and tier discounts together. At the limit the button reads **Upgrade to create more**, or **Discount limit reached** on Enterprise and Professional.
- **Below the first tier, no quantity discount.** A product bought in a quantity under the first tier's minimum gets no tier discount. Start the first tier at 0 or 1 to cover every quantity.

> **Important:** With **Tag priority** set to **Prefer tier tag**, a product covered by a quantity tier never falls back to the customer's flat discount, even when the quantity is under the first tier. Start the first tier at 0 or 1, or keep **Prefer flat tag**.

> **Important:** Keep **Price Off** and **Fixed Price** amounts below the price of every product the tier covers. A **Price Off** larger than the price takes more than the product's price off the order, and a **Fixed Price** above the product's price reduces the customer's other wholesale discounts on the order.

- **Percentages are not capped.** The tier form accepts any percentage. Enter 100 or less.
- **One quantity tier per product.** When a customer carries several quantity tiers that cover the same product, only one applies. Give each customer one quantity tier per product.
- **Tag names cannot be changed** after saving, and a tag name should not be reused by a discount of another type: with a flat discount of the same name only one of the two applies, and with a price list or cost plus markup discount of the same name a customer who carries the tag gets both.
- **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 discount at a low quantity                   | The quantity is under the first tier's **Min. quantity**                              | Add a first tier that starts at 0 or 1.                                        |
| The flat discount stopped applying to a product | **Tag priority** is **Prefer tier tag** and the product is covered by a quantity tier | Start the first tier at 0 or 1, or switch to **Prefer flat tag**.              |
| Variants are not counted together               | **Applies to** is **Select individual variants** and only some variants are selected  | Select every variant that should count, or use **Select individual products**. |
| "Tier 2 minimum value … must be greater than …" | Two tiers have the same or a reversed **Min. quantity**                               | Give each tier a higher minimum than the tier before it.                       |

## Frequently asked questions

### Do different variants of a product count toward the same quantity tier?

Yes. Process Wholesale adds up all units of the same product that the tier covers, across variants. With **Select individual variants**, only the selected variants are counted, plus any variants of the product that one of the customer's flat discounts covers.

### Do different products count toward the same quantity tier?

No. Each product is counted on its own. To count units across different products, use a [cart quantity tier](cart-quantity-tier-discounts.md).

### Can a quantity tier set a fixed price per unit?

Yes. Choose **Fixed Price** as the tier's **Discount type** and enter the price. Each unit then costs that price, for example 15.00 instead of 20.00.

### Do I set the maximum quantity of each tier?

No. When you save, Process Wholesale sets **Max Quantity** to one less than the next tier's minimum, and the last tier has no maximum.

## Related articles

- [Wholesale discount types compared: flat, tier, price list and cost plus markup](discount-types.md)
- [How to give a wholesale discount based on total cart quantity](cart-quantity-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)
- [How Quick Buy calculates the prices it shows](../storefront/quick-buy-prices.md)