The deadline, stated plainly
Shopify Scripts editing and publishing locked on April 15, 2026. All Scripts stopped executing on June 30, 2026. Since then, any tier pricing, BOGO, or line-item logic that lived in a Script returns full retail at checkout. There was no grace period. Our full migration checklist covers the non-pricing Scripts too; this post is specifically about tier pricing.
What Scripts did for tier pricing
For tier pricing, a line-item Script read the customer's tags (or order attributes) in the checkout and rewrote each line price: wholesale tier gets price A, VIP gets price B, quantity 12+ gets price C. It was Plus-only and it ran server-side, which is why it held through checkout and Shop Pay. Whatever replaces it has to change the price Shopify actually charges at checkout, not just what the theme displays.
The replacement options
Option 1: Native Shopify Functions (build it yourself)
Functions are the official successor: compiled modules that run inside checkout, available on Basic, Shopify, and Advanced plans, not just Plus. For a developer, a Discount Function or Cart Transform Function can reproduce tier pricing. This is the right route if you have engineering capacity and want to own the code. The cost is build and maintenance time: you are writing, testing, and versioning WebAssembly logic, and re-testing it every time Shopify ships pricing-pipeline changes.
Option 2: A pricing app
Most merchants don't want to maintain a Function. A pricing app gives you a rules UI on top: define "tag → tier price" without code, and the app handles both the price display and the price Shopify charges. Apps get there differently: some run a Discount or Cart Transform Function, while TagTier puts each tier price on a hidden child-product variant and swaps the cart line to that variant, so Shopify's native checkout charges it. This is the practical replacement for the typical tier-pricing Script. The migration question becomes which app, and the comparison is in the wholesale app comparison.
Option 3: Native discounts (only for simple cases)
If your "tier pricing" was really one flat percentage for one group, Shopify's native automatic discounts may cover it without an app at all. Be honest about whether that's your case. Native discounts struggle with per-variant fixed prices, multiple standing tiers, and quantity ladders stacked per group — the things real tier pricing usually needs.
What tier pricing specifically needs from a replacement
Tier pricing is not a single discount; it is a standing price book per customer group. A replacement has to handle:
- Per-group prices driven by customer tag, more than three groups if you have them (native B2B caps at 3 catalogs off Plus).
- Fixed price or percent per tier, with quantity breaks stacked on top.
- Per-variant resolution, so multi-size SKUs price correctly.
- Cart + Shop Pay + draft order + refund parity. Scripts had this for free because it ran server-side. A theme-code "replacement" does not, and that is the most common migration mistake.
How to migrate tier logic safely
- Inventory the Script. List every tier, every tag, every quantity break, every product or collection it touches. This is your acceptance test.
- Rebuild the rules in Functions or a pricing app on a development store.
- Parallel-test each tier: log in as a tagged customer, add to cart, open Shop Pay, place a draft order, issue a test refund. Confirm the number matches the old Script's prices everywhere.
- Verify independently. Editing locked April 15 and Scripts stopped running June 30, so there is no live Script to compare against — the new path has to be verified against the inventory from step one.
Most tier-pricing migrations are an afternoon of rule setup plus a one-to-two-week verification period. The risk is not effort; it is shipping a display-only "fix" and finding out at checkout.
Honest recommendation
If you have a dev team and want to own it: native Functions. If you want tier pricing without maintaining code, and especially if you run more than three tiers or a hybrid DTC + wholesale + subscriber store: a pricing app. If your tier pricing was genuinely one flat discount: native discounts, no app. TagTier is built for the second case — no Scripts dependency and no Function to maintain: tier prices live on hidden child-product variants, the storefront script swaps the cart line to the matching variant, and Shopify's native checkout charges that price. The Plus plan adds an audit log and one-click rollback, so a bad rule is a click to undo, not a screenshot from an angry buyer.
Rebuild your tier pricing on a dev store →