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Settings for Shipping Rate

Configure global behavior for how shipping rates are selected and calculated when multiple rules or mixed carts are involved.

Checkout for a logged-in B2B customer: the shipping method is the rule name Shipping Rate at $10.00

What your customers see on the storefront.

Open Shipping Rate > Settings.

Shipping Rate Settings: Choose which shipping rate to apply and Choose what the rate is based on, with a worked example

When multiple shipping rules apply to the same products or customers, choose which rate takes effect (default: The lowest rate):

Option Behavior
The lowest rate The system automatically uses the lowest applicable shipping rate
The highest rate The system uses the highest applicable shipping rate

Choose how the shipping fee is calculated when a rule only applies to certain products in the cart (default: Entire order):

The shipping rate is calculated based on the subtotal, total quantity, or total weight of all products in the cart, including products that are not covered by the shipping rule.

Example: You create a shipping rule for Product A (Product B has no shipping rule).

Range Rate
5–15 items 20%
16–30 items $10 flat rate

Scenario 1

  • 3 × Product A = $30
  • 7 × Product B = $35
  • Total items: 10 → falls in 5–15 range
  • Order subtotal: $65
  • Shipping: 20% × $65 = $13

Scenario 2

  • 12 × Product A = $120
  • 8 × Product B = $40
  • Total items: 20 → falls in 16–30 range
  • Order subtotal: $160
  • Shipping: $10 flat rate

This logic applies equally to Amount Range and Weight Range, not just Quantity Range.


The shipping rate is calculated based on the subtotal, total quantity, or total weight of only the products that the shipping rule applies to. Other products in the cart are ignored for shipping calculations.

Example: You create a shipping rule for Product A (Product B has no shipping rule).

Range Rate
5–15 items 20%
16–30 items $10 flat rate

Scenario 1

  • 3 × Product A = $30
  • 7 × Product B = $35
  • Total items: 10, Applied items: 3 → falls in 5–15 range
  • Applied subtotal: $30
  • Shipping: 20% × $30 = $6

Scenario 2

  • 18 × Product A = $180
  • 2 × Product B = $10
  • Total items: 20, Applied items: 18 → falls in 16–30 range
  • Shipping: $10 flat rate

This logic applies equally to Amount Range and Weight Range, not just Quantity Range.