Discounts

Summer Upsell discounts are real Shopify discounts, generated through Shopify Functions. They appear in your Shopify admin under Discounts, work in checkout, and flow through to receipts and reports natively.

Discount types

• Percentage — e.g. 15% off the upsell item.
• Fixed — e.g. $5 off the upsell item.

When the discount applies

Mode	Behavior
always	The discounted price is always shown on the upsell card and applied if added.
trigger_in_cart	The discount only applies if the trigger product is also in the cart at checkout. Prevents customers from gaming the offer by adding only the upsell item.

Why Shopify Functions

• Discounts apply at checkout, not as a post-hoc edit — receipts, taxes, and reports stay accurate.
• No discount codes are exposed publicly — no risk of code leaks or abuse.
• Compatible with Shopify's combine with other discounts rules.

Permissions

The app needs read_discounts and write_discounts scopes. These are granted on install.