Scripts → Functions

Deadline: Jun 30, 2026

Shopify Scripts stop
working on June 30, 2026.
We help Plus brands
migrate safely.

If your store still uses legacy Shopify Scripts for discounts, shipping, payment logic, VIP pricing, wholesale rules, or campaign logic, it needs to be audited before the deadline.

Why now

Migration requires planning, testing, and replacement logic. Brands that wait until late Q2 2026 risk checkout regressions during the busiest selling period of the year.

Who this is for

Shopify Plus brands with active script-based logic affecting discounts, shipping, payment, customer groups, or campaign behavior.

Why This Matters

Checkout logic is at risk.

Shopify Scripts are being deprecated. After June 30, 2026, scripts no longer execute at checkout. Discount, shipping, and payment behavior that depended on script logic will silently stop applying.

Migration is not a like-for-like swap. Shopify Functions has a different execution model, different testing surface, and different edge-case behavior than the Scripts editor.

For Plus stores running active campaigns, VIP pricing, wholesale pricing, or bundle logic in scripts, the migration needs planning, testing, and rollout strategy. This is especially important for stores with checkout customizations layered on top.

What We Audit

Discount scripts
Shipping scripts
Payment scripts
VIP / customer group rules
Wholesale rules
Campaign logic
Free shipping thresholds
Bundle and promo logic
App dependencies on scripts
Checkout customization dependencies
Testing requirements

Migration Options

Shopify Functions

The primary replacement path for most discount, shipping, payment, and cart logic. Native Shopify execution at the checkout layer.

Checkout UI Extensions

Where script logic was driving checkout UI behavior or content, UI Extensions handle the presentation layer alongside Functions logic.

Shopify Flow

For workflow logic that does not need to run inside checkout itself. Useful for downstream operations and conditional automations.

App-based replacement

Where Functions and Flow do not cover the use case, focused Shopify apps or custom logic can replace specific script behaviors.

Custom Shopify app logic

For complex or proprietary logic, a custom app gives you control over execution, testing, and ongoing maintenance.

Simplifying legacy logic

Some scripts can be retired. Others should be simplified before migration. The audit identifies which logic is still earning its place.

What You Get

01

Current script risk review

Every active script categorized by purpose, dependency, and post-deadline risk.

02

Replacement recommendation

The right migration path for each script: Functions, UI Extensions, Flow, app, or retirement.

03

Migration roadmap

Sequenced plan with dependencies, testing checkpoints, and rollback options.

04

Testing checklist

Discount, shipping, payment, and edge-case scenarios with expected behavior, ready for QA.

05

Implementation plan

Scope, ownership, and timing for the actual migration work.

Audit before the
deadline lands.

Start with a Scripts Migration Audit. We will review what is at risk and recommend the safest migration path.