Shopify Scripts Stopped Working: Find What Silently Broke
Shopify Scripts stopped executing on June 30, 2026 — no error, no warning. Here's how to find which orders shipped without your margin and discount logic, and what to do next.
Shopify announced it years ago, and the deadline has now passed: Shopify Scripts stopped executing on June 30, 2026. Editing froze earlier, on April 15, 2026. If your store ran any Ruby-based checkout scripts — for discounts, shipping logic, or payment filtering — that logic is no longer running. There was no warning, no error, and no grace period. It just stopped.
For many Shopify Plus merchants, this is a bigger deal than it sounds, and most haven't checked yet. Scripts was the quiet engine behind some of the most critical margin-protection logic in their checkout flows for years, and its shutdown left no trace in the order data.
Why Shopify Scripts Stopped Working, and Why the Failures Are Silent
Shopify Scripts was a Shopify Plus–exclusive feature that let merchants write Ruby code to customize checkout in ways the standard platform didn't support. It ran three types of scripts:
- Line item scripts — modify prices, apply discounts, bundle logic
- Shipping scripts — rename, hide, or reorder shipping options
- Payment scripts — show or hide payment methods based on cart conditions
Because it ran server-side at checkout, merchants could enforce rules that were difficult to replicate in the storefront. A script could inspect every line item, check totals, apply tiered discount caps, or block stacking — all before the order was placed.
Shopify Scripts became the unofficial home of margin guardrails for Plus stores. The common patterns:
Coupon stacking prevention. Scripts detected when multiple discount codes were active simultaneously and rejected the combination before the transaction completed. Without this, a determined customer (or a coupon aggregator site) could layer a 20% loyalty code on top of a 15% sale and wipe out margin in a single order.
Minimum order value enforcement. Merchants used scripts to block free shipping or specific discounts from activating unless the cart met a minimum profitable threshold.
MAP price protection. Brands selling through DTC channels used scripts to ensure that no discount logic — regardless of source — pushed the final price below their Minimum Advertised Price commitments.
None of that was an edge case. For mid-market ecommerce brands doing $5M–$50M in annual GMV, these guardrails were often the difference between a profitable month and a margin-destroying one.
Here is the part that makes this dangerous rather than just disruptive: checkout itself did not break. Shopify Scripts shutting down doesn't throw an error, doesn't fail a transaction, and doesn't show up in any log a typical merchant checks. The discount cap simply stopped applying. The MAP floor simply stopped enforcing. The order still confirms, the payment still processes, and the customer never sees anything unusual — they just got a better deal than your Script used to allow. If your engineering or finance team didn't proactively replace that logic before June 30, you have likely been shipping orders below your intended margin ever since, with no alert telling you so.
The Audit Checklist: Find What Silently Broke
Before you can replace anything, you need to know what you actually lost. Run through this checklist against your store:
- Pull your old Script inventory. Go to Shopify admin → Apps → Script Editor. Even though the scripts no longer execute, the editor still lists what you had. Document every script, noting which ones did margin-related work (discount caps, stacking prevention, MAP enforcement) versus pure UI logic.
- Compare discount-stacking behavior before and after June 30. Pull a sample of orders from May 2026 and a sample from July 2026 that used more than one discount code or promotion. If your pre-deadline sample shows stacking blocked or capped and your post-deadline sample shows it going through uncapped, that guardrail is gone.
- Check MAP compliance on affected SKUs. If you had a Script enforcing Minimum Advertised Price, pull recent orders on those SKUs and check whether any cleared below the MAP floor. A single violation is a signal; a pattern means the enforcement is fully gone.
- Look for minimum-order-value bypass. If a script blocked free shipping or a specific discount below a profitable cart threshold, check whether that threshold is still being respected in current orders.
- Reconcile margin, not just revenue. Revenue and order-volume dashboards will look normal, because nothing about checkout itself failed. You have to check gross margin per order against your floor specifically, because that is the number the missing Script logic used to protect.
- Watch for silent creep, not a cliff. Because there's no error, the damage compounds gradually — a few more stacked discounts each week, a slow drift below MAP — rather than showing up as an obvious spike anywhere you'd normally look.
If step 2 or 3 turns up orders that shipped below your floor, you already have your answer: Scripts stopped working, nothing replaced it, and the gap has been open since June 30.
Shopify Scripts Replacement Options: Functions, Public Apps, and a Margin Check
Once you know what broke, there are three pieces to consider.
Shopify Functions is Shopify's own official successor. Functions run backend logic (in Rust or AssemblyScript, compiled to Wasm) directly in Shopify's infrastructure, and can handle discount logic, shipping rules, and payment-method filtering — everything Scripts could do at the mechanics level. The gap: Functions gives you the building blocks, not a margin check. Building a real-time profitability evaluation that accounts for COGS, landed costs, live promotions, and channel-specific margin floors requires logic Shopify doesn't provide out of the box. You build it yourself, in Rust or AssemblyScript, inside a tight execution budget, or you move the margin check out of checkout to the window after the order is placed.
Checkout Extensibility and public apps built on it (no-code Function builders like PowerX, or UI-focused tools like Checkout Blocks) cover the visual and mechanical side well — custom fields, banners, discount UI, upsells. But the same gap applies: they replicate discount mechanics, not margin awareness. None of them know your COGS.
Agentis is a profit protection layer built for the margin-governance gap Scripts used to fill, not the UI-customization gap. It does not run in checkout and is not a like-for-like Scripts port. Within 60 seconds of each order, it checks true net margin — factoring in COGS from your ERP, promotions, discounts, freight, fees, and your configured margin floors — and flags or holds below-floor orders before they ship. Pair it with Functions: checkout rules for promotion logic, Agentis for the orders that still land below the floor.
If you were using Shopify Scripts for margin protection, here is how the pieces map to what you had:
1. Coupon Stacking Prevention
Stopping two codes from combining at checkout is now a job for Shopify's discount combination settings or a discount function. Agentis covers the other side: when a combination that got through pushes an order below your margin floor, Agentis flags the order with the codes involved and, under rules you approve, holds it before fulfillment.
2. Margin Floor Enforcement
You set a minimum margin percentage per product, collection, or order total. Agentis checks every order against it after all applied discounts, shipping subsidies, and fees. If an order lands below your floor, it is flagged with a recommended fix or held before fulfillment for manual review.
3. MAP Protection
For brands with Minimum Advertised Price obligations, Agentis checks MAP at the order level. It doesn't matter whether the discount came from a coupon, a bulk rule, or a channel-level promotion — if the final price breaks MAP, Agentis flags the order before it ships, so you can fix the promotion behind it.
See how Agentis works for Shopify Plus merchants →
Getting Agentis Live: What It Takes
The setup doesn't require writing any Function code, because nothing runs in checkout.
Step 1: Finish the audit above. Know which guardrails you lost before you rebuild them — otherwise you're guessing at what to configure.
Step 2: Connect Agentis and configure your rules. Connect Agentis to your store and your cost data, then set margin floors by product or collection, coupon-stacking rules, and MAP thresholds for relevant SKUs. There's no custom code to maintain.
Step 3: Run observe-only first. Let Agentis flag orders without holding any, and confirm it catches the discount combinations your audit flagged as newly unprotected.
Step 4: Turn on holds and keep watching. Once holds are on, the Evidence Ledger Agentis keeps means you won't be back here in another six months wondering what silently broke.
The merchants still exposed right now are the ones who built sophisticated margin logic into Scripts and never replaced it. If your audit above turned up gaps, rebuild the checkout rules you still need in Functions and put a margin check behind them.
See how Agentis checks margin on every order →