A volume discount rewards buying more of the same thing: 2 or more for 10% off, 5 or more for 20%. The shopper does nothing, the tier applies at checkout as soon as the cart reaches it, and the best qualifying tier wins. It is the most flexible discount type in CartSella, which is why the create picker marks it Most flexible. If you would rather the shopper actively picked a 3-pack on the product page, use the pack selector instead.

​
Set one up

1

Create the offer

Offers, then Create offer, then Discounts, then Volume discount. Two starting templates: Tiered percentage (2 / 3 / 5 for 10 / 15 / 20% off) and Fixed amount break (buy 2 save 5, buy 4 save 12).
2

Name it

Title customers see is the heading on your storefront and is required. Internal name is private and copies that title when left blank.
3

Pick the eligible products

In Eligible products, choose products, variants, collections, vendors or product types.
4

Choose how quantity is counted

Quantity logic decides whether each product counts on its own or the whole cart counts together.
5

Add the tiers

Each tier is a minimum quantity plus a discount. Presets fill in a common ladder for you.
6

Show it on the product page

Copy the offer ID, add the CartSella — Offers block to your product template, and paste the ID in.
7

Activate it

Set the status to Active and save.

​
Eligible products

The Applies to selector takes collections, products and variants in one selection, and filters by vendor or product type. Tick the exclude option to invert it, so the discount applies to everything in the cart except your selection. Exclude with nothing selected means every product in the store.
The Eligible products section with a compound selection and the Quantity logic dropdown below it

​
Quantity logic

Use Total cart items for “any 5 items from this collection, 20% off”. Use Per-product quantity for classic multi-buy pricing on a single item.

​
The tiers

Each tier card holds the three things that decide money, up front: Tier minimum quantity, Discount type (percentage or fixed amount) and Discount value.
The Discount tiers section with three tier cards showing minimum quantity, discount type and value
While you have one tier or none, three quick-start presets appear above the list: 2+ for 10% off, the 2 / 3 / 5 for 10 / 15 / 20% ladder, and 10+ for 25% off. A preset replaces the tiers, it does not add to them. Click Add a badge on a tier for the presentation extras, collapsed by default because they change nothing about the price:
A fixed-amount tier takes that amount off each eligible line, not off the order. “Buy 2, save 5” on three items is a bigger discount than on two.

​
Product page display

This section holds the functional settings only. Colours, fonts and shared text live on the Customize page and apply to every volume discount at once.
The Product page display section showing the interactive pack builder checkbox, display mode, message template and badge settings

​
The three storefront looks

A single line built from your message template, with an optional discount badge. The quietest option, and the right one when the discount is simple.
A volume discount rendered as a price table on a product page, with the best deal row highlighted
The pack builder needs a product to build packs from, so it only takes over on product pages. Placed anywhere else, the block falls back to the static card rather than disappearing.

​
Eligibility

Eligibility and targeting on a volume discount accepts purchase type, traffic source, customers’ order history, customer tags, customer location, markets, cart total, item count and products in cart. Cart weight is offered on gift offers only. Rules are combined with AND, so every rule you add has to pass. Customer tags and order history only filter shoppers who are signed in. Full detail in Advanced settings.

​
Advanced

Advanced options holds Priority, Maximum uses and Combinations, the same on every offer type. See Advanced settings.
Two volume discounts can both match the same product, for example a store-wide 2+ tier and a collection-specific ladder. Priority decides which one applies, and 1 wins over 10.

​
Examples