Shopify Scripts Deprecation: Everything Your Store Needs to Do Before June 30, 2026

Published: March 2026 Reading time: 8 minutes

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Shopify Scripts stop working on June 30, 2026. Not "will be deprecated" or "transitioning away" — they stop. If your Shopify Plus store uses Scripts for discount logic, volume pricing, or checkout rules, those features fail at midnight on July 1.

This isn't a gray area. Shopify has confirmed the date, removed the Script Editor from the App Store for new installations, and extended the deadline once already from August 2025 to June 2026. There's no indication of another extension.

I've spent the last several months auditing Scripts dependencies across Shopify Plus stores. The thing that surprises most ecommerce managers isn't the deadline. It's how many of their Scripts they didn't know they had, and how many they don't actually need to migrate at all.

This article covers what breaks, how to find out what you have, and what to do about it before June 30.

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What Are Shopify Scripts, and Why Are They Going Away?

Shopify Scripts are Ruby-based programs that run on Shopify's servers at checkout. They were introduced in 2015 as a Shopify Plus feature to give merchants control over checkout logic, custom discount rules, volume pricing, customer-specific pricing, shipping customizations, payment gateway filtering.

They worked. But Ruby is slow relative to what Shopify needs for scale, the Scripts editor was limited, and the functionality was hard to test and debug. Shopify Functions, the replacement, runs on WebAssembly and enforces a 10-millisecond execution cap. It's also more flexible: Functions can be written in JavaScript or Rust, version-controlled like normal code, and tested locally before deployment.

The migration isn't optional. After June 30, 2026, Scripts stop executing. Any checkout logic built on Scripts either gets migrated to Functions or breaks.

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What Actually Breaks on July 1

The risk varies significantly by how your store uses Scripts. Here's what's at stake by Script type:

Line Item Scripts (Product Discounts) The most common Scripts category. If your store uses Scripts to apply tiered discounts (buy 3, save 10%), bundle pricing, or customer-tag-based discounts (wholesale vs. retail), those rules stop executing on July 1. Customers will be charged full price.

Shipping Scripts Custom shipping rate logic, hiding carriers by region, adding free shipping thresholds that aren't available natively, applying shipping rules based on cart contents or customer tags. These stop working and your store falls back to your base shipping configuration.

Payment Scripts Filtering which payment methods appear at checkout based on cart value, customer tags, or product type. If you're using a Script to hide certain payment methods for wholesale customers, or show buy-now-pay-later only above a certain order value, that logic stops executing.

The business risk isn't just a broken feature, it's checkout revenue. A volume discount that stops applying mid-BFCM isn't a developer problem. It's a refund queue and a customer service crisis.

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The Step Most Stores Skip: Triage Before You Migrate

Before you touch a line of code, you need to know what you actually have, and more importantly, what you can delete without replacing.

This is where most Scripts migration guidance goes wrong. The default assumption is that every Script needs a corresponding Function. That's not true. Shopify has added significant native discount capability over the last two years: Automatic Discounts, and for Plus stores, B2B Quantity Rules and Catalogs for customer-specific pricing. These are native, no-code features that already exist in your admin.

In a typical Plus store I audit, a meaningful portion of Scripts fall into one of three categories:

1. Replaced by native features — Shopify already handles this without any code. The Script can be deleted.

2. No longer in use — The Script was written for a campaign or feature that no longer exists. Dead code that still runs at checkout, slowing it down.

3. Requires actual Functions development — Complex multi-condition logic that genuinely needs migration.

The triage step tells you which is which. Skipping it and migrating everything is how you end up over-engineering a solution for a problem Shopify already solved.

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How to Find Your Scripts Dependencies

Step 1: Open the Script Editor from your Shopify admin

Go to Apps → Script Editor. If you had it installed before Shopify removed it from the App Store, you still have access through your admin. Open it and document every Script you see. Note the Script type (line item / shipping / payment), when it was last modified, and whether it's active or inactive.

Step 2: Export your active Scripts list

For each active Script, note:

• What it does (the description, or read the code)

• Whether it has a conditional: does it apply to all customers, or only certain tags/products/cart conditions?

• When it was last edited

Step 3: Map to native alternatives first

Before assuming migration, check each Script against Shopify's current native features:

Anything in the first column that maps cleanly to a native alternative: delete the Script, configure the native feature, and test. No Functions development required.

Step 4: Scope what remains

What's left after triage is your actual migration scope. This is what needs Functions development before June 30.

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What Functions Migration Actually Involves

Shopify Functions are deployed as app extensions. Either through a custom app or a public app from the App Store. The development workflow is meaningfully different from Scripts:

• Functions are written in JavaScript or Rust (not Ruby)

• They're version-controlled and deployable through the Shopify CLI

• Shopify enforces a 10-millisecond execution cap per function run

• They require a connected app to deploy — you can't edit them directly in the admin the way you could with Scripts

For most discount and shipping logic, a JavaScript-based Function is the practical migration path. The Cart Transform API handles the most complex cases, bundle pricing, line item modifications, merged cart logic.

Complexity varies significantly. A single-condition volume discount rule is a day of development. Multi-condition logic with customer tags, order history, and product type rules is a week or more.

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What a Real Migration Looks Like

The pattern I see consistently: stores come in expecting to migrate 8–12 Scripts and end up migrating 3 or 4. The rest either map to native features or are dead code from campaigns that ended 18 months ago.

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The June 30 Timeline Is Tighter Than It Looks

It's March 2026. That's roughly 16 weeks to June 30.

Here's where that time goes:

• Weeks 1–2: Audit your Scripts, complete triage, scope the actual migration

• Weeks 3–6: Development and internal testing for any Functions that need to be built

• Weeks 7–10: Staging environment testing with real discount scenarios

• Weeks 11–12: UAT with your team — have someone manually test every checkout path that touches Scripts-based logic

• Weeks 13–15: Buffer for revisions, edge cases, and anything that breaks in testing

• Week 16: Go live. Verify. Monitor.

That's a tight timeline if you're starting now and a broken one if you wait until May.

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Three Ways to Handle This

Option 1: DIY with the Scripts Migration Playbook

If your team has Shopify development capacity, the Playbook gives you a complete triage framework, migration decision tree for every Script type, and production-ready code patterns for the most common Functions implementations. It's written for the ecommerce manager who needs to brief a developer, not just for the developer.

The Playbook is $295. If you later decide you want me to handle the migration directly, the full $295 is credited toward a Diagnostic Audit.

Option 2: Audit first, then decide

A Diagnostic Audit gives you a complete picture of your Scripts dependencies, a triage report on what needs to be migrated versus what can be deleted, and a scoped proposal for any Functions development required. You're not committing to a full migration engagement — you're buying clarity on your actual exposure before you make any decisions.

Option 3: Full migration handled

If you want the audit, triage, Functions development, testing, and deployment handled end-to-end before June 30, that's an Architectural Overhaul scoped to Scripts migration. Complexity determines timeline and price — a single-condition shipping rule is different from a multi-condition volume pricing setup with customer-tag logic.

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The One Thing That Matters Right Now

Run the triage. Find out what Scripts you have and which ones you can delete before writing a single line of Functions code.

Most stores have less to migrate than they think. But they also have less time than they think.

If you want the complete migration framework — triage decision tree, Script-by-Script breakdown, and the code patterns for the Functions that actually need building — that's what the Playbook covers.