Shipping Discounts

Rich Landing Bundle – Shipping Discount Function Summary

• Runs on Shopify Function target: cart.delivery-options.discounts.generate.run.
• Works globally across the cart, not per bundle.
• Scans all cart lines, detects bundle instances, determines the single best shipping tier, and applies it to all delivery groups.

Discount Types

1. shipping_percentage

• Reduces shipping by a percentage.
• discountValue: 50 → 50% off shipping.

1. free_shipping

• 100% off shipping (free shipping).
• Always takes priority over any percentage discount.

Global Priority Logic

When multiple bundles are in the cart:

1. Evaluate each bundle's applicable shipping tier.
2. If any bundle qualifies for free_shipping, free shipping is applied.
3. Otherwise, choose the highest shipping_percentage value.
4. Apply only that single best discount to shipping (no stacking).

Examples:

• Bundle A: 50% off shipping; Bundle B: free shipping → customer gets free shipping.
• Bundle A: 20% off; Bundle B: 40% off → customer gets 40% off.

How It Applies to Delivery Groups

• Every checkout has one or more delivery groups (items shipping together).
• The function creates a discount candidate per delivery group.
• Discount value is always a percentage:
• free_shipping → 100%.
• shipping_percentage → discountValue.
• Selection strategy: ALL → applies to all delivery options in each group, not just the cheapest.

Tier Qualification

Shipping tiers use the same qualification rules as product tiers.

Quantity-Based Tiers