20% Discount with a $100 limit

9 0 1

Hi guys!


I'm having a hard time using the script editor to figure out how I can implement this:


I'll give an influencer a promo code, say, INFLUENCER20, where it'll give all who use it 20% discount on their total order—but only up to $100. If their carts, therefore, exceed $500, instead of getting 20% they max out their discounts to just $100.


Thanks for any insight!

Reply 1 (1)
Shopify Staff
Shopify Staff
3 0 0

Hi Kevinrein,


Here’s an example script/apprach you can explore: Shopify Script - Max discount based on cart value



  1. Create a Discount code “INFLUENCER20” with 0% discount 
  2. Insert line item script in the Script editor app

example script: 


# Check the cart has a discount code and if so it equals the campaign
if Input.cart.discount_code and Input.cart.discount_code.code == 'INFLUENCER20'

  # Conditions for when the maximum discount value applies, in this case 500 or more
  if Input.cart.subtotal_price >= Money.new(cents:50000)
    # Value of the maximum discount that the cart will have
    max_discount = 100
    # Get Float value of the cart's cents variable in dollars
    cart_subtotal_float = Float((Input.cart.subtotal_price.cents / 100).to_s)
    # For each line item
    Input.cart.line_items.each do |line_item|
      # Get Float value of line item's cents variable in dollars
      line_price_float = Float((line_item.line_price.cents / 100).to_s)
      # Calculate percentage the line items price should be reduce to
    percentage = 1 - (((line_price_float / cart_subtotal_float) * max_discount) / line_price_float)
      # Multiple the line item by the percentage value it needs to be
      line_item.change_line_price(line_item.line_price * percentage, message: "$100 off")
  # If they are under the threshold reduce every line item by 0.2 (20% off)
  elsif Input.cart.subtotal_price < Money.new(cents:50000)
    Input.cart.line_items.each do |line_item|
      line_item.change_line_price(line_item.line_price * 0.8, message: "20% off")

Output.cart = Input.cart


 3. Test, Save and Publish