Discount Functions

Discount Functions extend Shopify's native discount capabilities with custom logic. Create complex discount rules that aren't possible with standard Shopify discounts — tiered pricing, conditional discounts, BOGO variations, and more.

Shopify Functions

Discount Functions are built on Shopify Functions, running directly in Shopify's infrastructure for maximum performance and reliability.

What Discount Functions Can Do

Discount Capabilities

Tiered discounts — Spend more, save more
BOGO variations — Buy X get Y at Z% off
Volume pricing — Price breaks at quantity thresholds
Customer-specific discounts — VIP, wholesale, first-time
Product combination discounts — Bundle pricing logic
Time-based discounts — Happy hour, flash sales
Conditional discounts — Based on cart contents, customer tags
Stacking rules — Control how discounts combine

How It Works

Define discount rules — Set up conditions and discount logic
Cart evaluation — CheckoutOS evaluates rules at checkout
Discount calculation — Applicable discounts computed
Shopify application — Discounts applied via Shopify Functions
Customer sees savings — Discounts reflected in checkout

Discount Types

Automatic Discounts

Applied automatically when conditions are met:

Automatic Discount

{
  "discount": {
    "name": "Summer Sale 20%",
    "type": "automatic",
    "trigger": "cart_qualifies",
    "conditions": {
      "min_cart_value": 50,
      "collections": ["summer-collection"]
    },
    "discount_value": {
      "type": "percentage",
      "value": 20
    }
  }
}

Code-Based Discounts

Require customer to enter a code:

Code Discount

{
  "discount": {
    "name": "VIP20",
    "type": "code",
    "code": "VIP20",
    "conditions": {
      "customer_tag": "vip",
      "usage_limit": 1000,
      "per_customer_limit": 1
    },
    "discount_value": {
      "type": "percentage",
      "value": 20
    }
  }
}

Tiered Discounts

Increasing discounts based on spend or quantity:

Tiered Discount

{
  "discount": {
    "name": "Spend More Save More",
    "type": "tiered",
    "tiers": [
      { "threshold": 50, "discount": 10, "message": "Save 10%" },
      { "threshold": 100, "discount": 15, "message": "Save 15%" },
      { "threshold": 200, "discount": 20, "message": "Save 20%" }
    ],
    "show_next_tier": true
  }
}

BOGO Discounts

Buy X get Y free or discounted:

BOGO Discount

{
  "discount": {
    "name": "Buy 2 Get 1 Free",
    "type": "bogo",
    "buy": {
      "quantity": 2,
      "products": "any_in_collection",
      "collection": "t-shirts"
    },
    "get": {
      "quantity": 1,
      "discount": 100,
      "applies_to": "cheapest"
    }
  }
}

Discount Conditions

Available Conditions

Cart value — Minimum or maximum spend
Product quantity — Number of items in cart
Specific products — Include or exclude products
Collections — Products from specific collections
Customer tags — VIP, wholesale, first-time
Customer email domain — B2B email matching
Order count — First order, returning customer
Date/time — Specific periods or recurring times
Shipping destination — Country, region, postal code

Discount Stacking

Control how multiple discounts interact:

Stacking Rules

{
  "stacking": {
    "allow_code_with_automatic": true,
    "allow_multiple_automatic": false,
    "priority_order": ["vip_discount", "tiered_discount", "sale_discount"],
    "max_discounts": 2,
    "max_discount_percentage": 50
  }
}

Discount Display

Configure how discounts appear to customers:

Display Options

{
  "display": {
    "show_savings": true,
    "savings_format": "You save ${{amount}}",
    "show_discount_name": true,
    "show_next_tier": true,
    "next_tier_message": "Spend ${{remaining}} more to save {{next_discount}}%",
    "strikethrough_original": true
  }
}

Discount Analytics

Track discount performance:

Usage count and revenue impact
Average discount per order
Conversion lift from discounts
Margin impact analysis

Explore Discount Types

Automatic Discounts

Set up auto-applied discounts

Learn more

Tiered Pricing

Spend more, save more

Learn more

BOGO Offers

Buy X get Y promotions

Learn more