Subscription Discounts

Gro supports applying discount codes to subscription contracts. Discounts are managed through Shopify’s subscription contract API and synced to Gro for display and tracking.

Discount Types

Type	Description	How It Works
Line item	Discount on specific products	Applied to individual line item prices
Order	Discount on the entire order	Calculated from the percentage or fixed amount on the subtotal
Shipping	Free or reduced shipping	Sets the shipping amount to $0 or a reduced rate

Note

Shopify converts “Amount off order” discounts to line item discounts on subscription contracts. The discount is distributed across line items proportionally.

How Discounts Are Calculated

Subtotal        = sum of (price × quantity) for all lines (before discounts)
Discount Amount = line discounts + order discounts
Total           = Subtotal − Discount Amount + Shipping + Tax

Discount Lifecycle

Each discount on a subscription tracks:

• Status: Active, Exhausted, or Removed
• Recurring cycle limit: how many billing cycles the discount lasts (unlimited if not set)
• Applied date: when the discount was first added
• Exhausted date: when the cycle limit was reached (if applicable)

Applying Discounts

Discounts can be applied to subscriptions:

• At checkout — customer enters a discount code during the initial purchase
• From the dashboard — your team applies a discount code to an existing subscription
• Via retention offers — automatically applied when a customer accepts a cancellation offer
• Via referral credits — applied as a one-cycle credit for the referrer (see Referrals)

Managing Discounts

In the Gro dashboard, navigate to a subscription’s detail page to view active discounts, their remaining cycles, and remove them if needed.