To make only USPS Ground Advantage free, use a shipping discount that targets the rate by name: choose Choose specific rates, type Ground Advantage, add it as a wildcard match and set it to Free. Shopify’s own free shipping discount makes every eligible rate free, Priority Mail Express included. Its only rate control is “Exclude shipping rates over a certain amount”, which filters by the rate’s price, and a price filter can’t tell Ground Advantage from Priority Mail when their prices overlap. RM: Advanced Free Shipping discounts any rate Shopify shows at checkout, including live carrier-calculated USPS rates, so Ground Advantage is free and Priority Mail keeps its price. It costs $9.90 USD every 30 days, with a 7-day free trial, billed by Shopify.

What the customer gets

In this example, Ground Advantage is free over $50. The rate names and prices are illustrative, because live USPS rates change with the parcel and the ZIP code.

  • A $65 cart: the rates are USPS Ground Advantage $7.45, USPS Priority Mail $10.20 and USPS Priority Mail Express $31.85. Ground Advantage drops from $7.45 to $0. Priority Mail and Priority Mail Express stay full price. The customer pays $65 with Ground Advantage, or $65 + $10.20 = $75.20 with Priority Mail.
  • A $40 cart with the same rates: it’s under $50, so nothing changes. The customer pays $40 + $7.45 = $47.45 with Ground Advantage.
  • A heavier $95 cart: Ground Advantage is $12.60 and Priority Mail is $16.90. Ground Advantage drops to $0. The customer pays $95 with Ground Advantage.

That heavier Ground Advantage rate costs more than the first cart’s Priority Mail. A price filter such as “exclude rates over $11” would leave it full price. Matching by name keeps Ground Advantage free at any price.

Example checkout for a $65 cart: USPS Ground Advantage drops from $7.45 to FREE, labeled Free Ground Advantage over $50, while Priority Mail stays $10.20 and Priority Mail Express $31.85. Total USD $65.00

Set it up

  1. In the app, click Create Shipping Discount. Under Discount method, choose Automatic discount, and enter a Title such as “Free Ground Advantage over $50”.
  2. In Conditions, click Add condition. Keep Cart total, set Is at least and enter 50.
  3. In Discount setup, set Delivery type to Shipping and Which rates to Choose specific rates.
  4. In the rate search, type Ground Advantage and choose Add “Ground Advantage” (wildcard match).
  5. Set Discount value to Free.
  6. Click Create discount.

Discount setup with Delivery type Shipping, Which rates set to Choose specific rates, a Standard rate added, and Discount value Free

The screenshot shows a rate called Standard. For this offer, add Ground Advantage as a wildcard instead.

Pick the right keyword

A wildcard matches any rate whose name contains your text, ignoring upper and lower case. Choose the words with care:

  • Ground Advantage matches only that service.
  • Ground also matches “UPS Ground” and “FedEx Ground” if you show those carriers.
  • Priority Mail matches both Priority Mail and Priority Mail Express.

Run a test checkout first and copy the exact service names you see. Carrier names can differ slightly between the rate list in the app and checkout.

Variations

  • Free Ground Advantage and $5 off Priority Mail: open the ⋯ menu on Discount setup and choose Add delivery discount. Pick the Priority Mail rate from the list, so it’s an exact match that leaves Priority Mail Express alone, and set Fixed Amount Off 5. This works when the listed name matches the checkout name exactly. Priority Mail drops from $10.20 to $5.20.
  • Free Ground Advantage on light parcels only: add Cart weight Is at most 1 with the unit set to lb. See free shipping by weight.
  • Free Ground Advantage on every order: leave Conditions empty.
  • Only with a code, for example in a welcome email: choose Discount code in step 1.

Good to know

  • To fix a Ground Advantage rate that isn’t discounted, check its name at checkout and use a wildcard keyword. A picked name that differs from the checkout name won’t match.
  • To set a weight in pounds, choose lb before you type the number. The weight unit starts on grams.
  • To keep Priority Mail Express full price, never use Priority or Mail as a wildcard. Both match it.
  • To let the discount do the work, remove any $0 rate you added by hand in Settings → Shipping and delivery. A rate that’s already free has nothing left to discount.
  • To test it, turn on Test mode and check out with the shipping first name ABC123. Try carts at $49 and $50.

Install RM: Advanced Free Shipping from the Shopify App Store.