Use this article to offer tiered quantity discounts on chosen products inside the Smart Cart, so a shopper who adds more units of the same product pays less per unit. The settings live in your Rebuy admin under Cart & Merchandising, then Smart Cart, your cart, then the Cart Items component panel.
Buy More Save More configured inside the Smart Cart shows quantity-break offers on the cart's line items and discounts those line items, and it is available on every Shopify plan. To put quantity-break pricing on a product page instead, you use the separate Buy More Save More Product Page Widget, which is a Rebuy widget rather than a Smart Cart setting and has its own article set. The section named Buy More Save More in the cart and the product page widget below covers which one you want.
This article is part of the Smart Cart component set. To apply Buy More Save More to every product in your store rather than a chosen list, read Enable Buy More Save More (Smart Cart) on all Products after you finish the setup here.
Where the Smart Cart's Buy More Save More settings live
Buy More Save More is configured on the Cart Items component panel in the Smart Cart editor, which catches people out because it is a cart-level feature rather than a line-item display setting. Turning it on affects the whole cart, not just the Cart Items component, and there is one Buy More Save More configuration per Smart Cart.
The Cart Items panel renders its cards in this order: Empty Cart Language, Enable Quantity Input, Switch to Subscription, Use Product Metafields, Buy More Save More, Nested Cart Items, and Advanced. Scroll to the Buy More Save More card to find everything described in this article.
Because there is one configuration per cart, you cannot run different tiers for different product groups in the same cart. Every product you select uses the same tiers.
Buy More Save More in the cart and the product page widget
The name Buy More Save More belongs to more than one Rebuy feature, and picking the wrong one is the most common reason a setup does not appear where a merchant expects it. The table below names each feature, where you configure it, where shoppers see it, and where it is documented.
Feature | Where you configure it | Where shoppers see it | Documentation |
Buy More Save More in the Smart Cart | Cart Items panel of a Smart Cart, under Cart & Merchandising > Smart Cart in your Rebuy admin | On line items inside the Smart Cart, as tier buttons or a dynamic message | This article |
Buy More Save More Product Page Widget | The Widgets section of your Rebuy admin, as a widget of its own | On a product page, wherever you place the widget |
Buy More Save More configured inside the Smart Cart renders in the cart only, so nothing you configure here appears on a product page. The Buy More Save More Product Page Widget is installed and styled like any other Rebuy widget, so its tiers, its discounting and its settings are separate from the cart's, and configuring one does not configure the other.
Turn on Buy More Save More in the Smart Cart
Turning Buy More Save More on reveals the rest of its settings; the card shows only the master toggle until you do.
Go to Smart Cart in your Rebuy admin under Cart & Merchandising and open the cart you want to configure.
In the editor sidebar, click the Cart Items component to open its settings panel.
Scroll to the Buy More Save More card and turn the toggle on.
Work through the settings that appear, described in the sections below. At a minimum you need at least one tier, at least one product, and a value in every label field.
Click Save.
If Save reports a problem with Buy More Save More, the message names what is missing. Please select at least one product for this discount. means the product list is empty. Please ensure that all tiers have valid quantity and discount values. means a tier breaks one of the tier conditions described below. Please ensure all discount labels have a value. means a label field was emptied. A Smart Cart with an invalid Buy More Save More configuration cannot be enabled, so these are worth clearing before you move on.
Buy More Save More Settings Definitions
Display Types
Buttons will display the message for each tier i.e. "Buy {{quantity}} save {{discount}}" will show below the product image as button types with a message "Buy 2 save 5%" "Buy 5 save 10%" "Buy 10 Save 15%". This is based off the discounting tiers set up below.
The dynamic message "Buy {{difference_next_quantity}} more, save {{discount}}" is now available. For example, in a "buy 4, save $1" promotion, if a shopper has 2 items in their cart, they will see the message “Buy 2 more, save $1.00,” indicating the quantity they need to add to qualify for the discount.
Discount Language
This is what will display on either the buttons or dynamic text.
Discount Success
This is what will display next to the product when the discount has been applied to the product.
Discount Type
You can choose between a percentage discount, or make it a fixed price discount.
Select products that these discounts will apply toward
This will search for the products/variants that you would like to have the BMSM discounts apply toward. Type your product into the search bar and select the one(s) you would like to discount.
You can add up to 4 tiers of discounting. The tiers must be in ascending order, meaning that the first tier must be the lowest amount of quantity and discount percentage or fixed amount.
Example
If tier 1 (product quantity = 2, and discount 5% then the tier 2 (product quantity = {must be greater than the previous (3 or greater)}, discount = {must be greater than the previous (6% or greater)}) and the same applies to the final tier.
By default, when you add a new tier, whether you are using the percentage discount type or a fixed price discount, it will increase in increments of 5. It will also increase your quantity increments by 1 each tier you add. You can adjust these as you wish as long as they are higher than the previous tier.
Buy More Save More (BMSM) quantity thresholds apply per line item, not across all variants in the cart. Each variant a customer adds is treated as its own line item and evaluated independently — quantities do not combine across different variants.
Discounting Instructions
Shopify Functions
With Rebuy’s integration into Shopify Functions, you can generate and apply a Buy More Save More discount directly within the Smart Cart settings as shown below.
For more information on how discounting works with Shopify Functions via Rebuy, please refer to our Rebuy Discounting Overview guide linked below.
Warning: 🚫 When running other Shopify Discounts in parallel with a Rebuy Shopify Functions discount, you will need to set your other discounts to be combinable to ensure that they do not override Rebuy's Shopify Functions discounts. While Rebuy's discounts are automatically set to combine, Rebuy cannot control the settings of your other Shopify Discounts.
To change your Shopify Discount combination settings, navigate to the specific discount's Combinations settings within your Shopify Admin and enable the appropriate combination option(s):
For more information on Discount combinations, please refer to Shopify's documentation here.
Combinable settings alone do not put two product discounts on the same product. If your store is on Shopify Plus and you want a store sale and a Buy More Save More tier discount to both apply to the same product, turn on Enable discount stacking under Settings > Discount Combinations in the Rebuy admin, then tag that Shopify discount rebuy and set its Product discounts combination to Multiple per product allowing rebuy. See Discount Combinations: Stack a Rebuy Discount and a Shopify Discount on the Same Product. On every other Shopify plan, Shopify applies one product discount per product and keeps the larger one.
Shopify Automatic Discounts
If for any reason you do not wish to use Rebuy's Shopify Functions discounting options and prefer to set up the discounting directly in your Shopify Admin, you still have the ability to use Shopify Automatic Discounts. This requires that you manually create the Automatic Discount in your Shopify Admin. If you wish to use the Automatic Discounts option, proceed to the Buy More Save More via Automatic Discounts help article.
Buy More Save More FAQ
Do I need to be on a Shopify Plus plan to use the Buy More Save More feature?
No, a Shopify Plus plan is NOT required, as you can use Shopify Functions directly within the Smart Cart's Buy More Save More settings to enable your product discount(s). The Shopify Functions discounting feature within Rebuy now available to all Shopify plans.
Can I create multiple Buy More Save More campaigns?
Currently you can only make one Buy More Save More campaign. Meaning you will not be able to make different rules for different products. You will only be able to select the product(s) and they will use the same tiers. We are looking to expand this feature in an upcoming version so you can make multiple campaigns.
Why doesn't the BMSM discount apply to items added on the PDP?
Rebuy's BMSM discounts are Smart Cart-specific. Items added directly on the PDP lack the necessary attribution to trigger discounts. By using the Smart Cart's "+" button or designed BMSM buttons, attribution is added, thereby enabling discounts.
Can I select a collection for Buy More Save More?
Currently, only individual products can be added to Buy More, Save More. Collections are not supported at this time.
How many items can qualify for Buy More Save More?
You can have up to 100 products qualify for BMSM. If you select/add more, then a pop-up will appear notifying you that you have reached this limit.
Does Buy More Save More count quantity thresholds across different variants or product line items?
Buy More Save More (BMSM) quantity thresholds apply per line item, not across multiple line items in the cart. Each variant in the cart is treated as its own line item and is evaluated independently.
For example, if a customer adds 1× Small and 1× Large of the same product, those are two separate line items. Neither one has a quantity of 2, so a "Buy 2" tier does not trigger — even if both variants are included in the campaign. To reach that tier, the customer needs to add 2 units of the same variant (e.g., 2× Small).
There is no mix-and-match setting or toggle that changes this behavior. It is how Rebuy's Shopify Functions-based discounts apply at the line item level.