Shopify Scripts Deprecation: Key Dates and Migration Guide

Shopify Scripts Deprecation: Migrate to Shopify Functions and Checkout UI Extensions Before June 30, 2026

Shopify Scripts deprecation follows a hard two-stage cutoff: editing ends April 15, 2026, and execution stops entirely on June 30, 2026. If your Shopify store or Shopify Plus setup still relies on Scripts for discounts, shipping, or checkout logic, the migration window is closing fast.

What Are Shopify Scripts and Why Do Merchants Use Them?

Shopify Scripts are small Ruby-based programs that run server-side on Shopify's infrastructure, available exclusively to Shopify Plus merchants. They gave stores a degree of checkout control that standard Shopify apps could not match, particularly for:

• Discounts: Tiered pricing, BOGO logic, cart-level percentage or fixed discounts, customer-tag-based offers

• Shipping: Hiding, renaming, or reordering shipping rates based on cart contents or customer attributes

• Payments: Showing or hiding payment gateways based on order value, customer location, or product type

For complex B2B pricing or promotional logic woven directly into checkout, Scripts were often the only viable option. Apps like Bundle Wave handle bundled product discounts at the app layer, but Scripts covered logic that needed to execute inside the checkout flow itself, without a third-party dependency.

The drawbacks were always there: slow execution, limited debugging tools, and a Ruby environment that Shopify has been moving away from for years. Deprecation makes that direction official.

The Deprecation Timeline Every Shopify Merchant Needs to Know

According to the Shopify Changelog, the cutoff runs in two stages.

April 15, 2026: You can no longer edit or publish Shopify Scripts. Scripts already published will continue running, but no changes or new deployments are possible.

June 30, 2026: All Script execution stops. Every Script goes dark on this date, regardless of whether it was published before the April cutoff.

The second date is the one that breaks checkouts. A Shopify merchant whose entire promotional pricing model runs through Scripts will have a broken checkout experience starting July 1, 2026, with no fallback.

The period between April 15 and June 30 is not development time. It is a read-only holding pattern. Any migration gaps discovered after April 15 cannot be patched in Scripts. All meaningful work must be finished before the editing cutoff, not before the execution cutoff.

Shopify Functions and Checkout UI Extensions: What Replaces Scripts

Shopify's modern checkout stack replaces Scripts with two distinct tools, each addressing a different layer.

Shopify Functions

Shopify Functions are WebAssembly-based programs running inside Shopify's infrastructure. They cover the same core use cases as Scripts: discount logic, shipping customizations, and payment filtering. The differences matter operationally:

• Functions execute in under one millisecond, compared to the variable latency of Ruby-based Scripts

• They are written in Rust or JavaScript, versioned like any standard codebase, and fully testable with Shopify's CLI

• Functions can be packaged as a Shopify app, giving them the same install, review, and versioning experience as any other Shopify app

• Shopify is actively building new Function APIs for discounts, shipping, and payments, so the platform is growing, not winding down

Checkout UI Extensions

Checkout UI Extensions address the visual and interactive layer of checkout. They let merchants add UI components (fields, banners, upsells, consent checkboxes) without modifying Shopify's core checkout theme. For merchants who used Scripts partly as a workaround to surface inputs or information at checkout, Checkout UI Extensions are the right replacement. They are sandboxed, fully supported, and compatible with Shop Pay and one-page checkout.

Scripts vs. Functions: A Direct Comparison

Common Migration Challenges to Plan For

Migrating from Scripts to Functions is not a lift-and-shift operation. A few friction points come up consistently.

Logic complexity. Scripts that accumulated years of conditional logic, special-case handling, and business-rule exceptions are not always straightforward to re-express in a Function. The data model is different enough that some logic needs to be redesigned, not just translated line by line.

Undocumented behavior. Scripts were often deployed with minimal automated testing because the tooling was limited. During the migration testing phase, merchants regularly discover behavior that was never formally documented, and those gaps need resolution before go-live.

Checkout UI gaps. Some merchants used Scripts to work around missing checkout UI capabilities. Checkout UI Extensions now cover those cases properly, but replacing a workaround requires understanding what each Script was actually doing, not just what it was intended to do.

Timeline pressure. Merchants who start late will have no ability to patch Scripts if a problem surfaces mid-migration. The April 15 editing cutoff removes that safety valve entirely.

Why Work With Dotmagic Infotech on Your Shopify Script Migration

Dotmagic Infotech specializes in Shopify and Shopify Plus development, including Script-to-Functions migrations for stores with complex checkout logic. The process starts with a full audit of existing Scripts, documenting every discount rule, shipping filter, payment condition, and edge case before any replacement code is written. That audit phase is where most migrations succeed or fail.

From there, the team rebuilds the logic using Shopify Functions and Checkout UI Extensions, replicating behavior precisely rather than approximating it. Every migration goes through staged testing covering edge cases, cart scenarios, and payment gateway behavior before any production deployment. The objective is zero disruption to checkout and zero loss of existing promotional logic.

Post-migration support is included. If a Function behaves unexpectedly in production, or if a Shopify API update affects your implementation, the team handles it. For Shopify merchants and Shopify Plus store owners who need a migration assessment, contact Dotmagic Infotech to scope the work before the April 15 editing deadline closes your options.

FAQ

What is the exact Shopify Scripts deprecation timeline?

Editing and publishing of Shopify Scripts ends on April 15, 2026. Execution of all Scripts stops on June 30, 2026. Practically, all migration work should be completed before April 15, because no Script changes are possible after that date. Waiting until June 30 leaves no room to fix problems discovered during migration.

What are the main advantages of Shopify Functions over Shopify Scripts?

Shopify Functions execute in under one millisecond, are written in JavaScript or Rust, and can be packaged as Shopify apps with proper versioning and testing. Unlike Scripts, Functions are on Shopify's active development roadmap, with new capabilities for discounts, shipping, and payment customization continuing to ship. They also support unit testing and full CLI tooling, which Scripts never did.

How can a Shopify app development company help with migrating away from Scripts?

A Shopify app development company with Functions experience will audit your existing Scripts, document the business logic in each one, rebuild that logic using Shopify Functions and Checkout UI Extensions, and run thorough testing before deployment. This ensures complex discount rules, shipping filters, and payment customizations keep working after the June 30, 2026 execution deadline, without requiring your internal team to learn a new development stack under deadline pressure.

About Dotmagic Infotech

Dotmagic Infotech is a full-stack Shopify and web development agency with expertise across Shopify, React, Node.js, React Native, and CRM integrations. The team works with Shopify merchants and Shopify Plus brands on custom app development, checkout migrations, store performance, and Shopify app promotion strategies. Find Dotmagic Infotech on the Shopify Partner directory or reach out directly to discuss your Scripts migration before the April 15 deadline removes your ability to make changes.