Shopify Scripts stops executing on June 30, 2026. That is 14 days from today. If you are a Shopify Plus merchant running custom discount logic, shipping rules, or payment gating through Scripts, your checkout customizations disappear at midnight on June 30 — no grace period, no rollback, no extensions. The replacement is Shopify Functions. The migration window is effectively closed. What remains is execution.
What Shopify Scripts Actually Did
Shopify Scripts were Ruby programs, exclusive to Plus merchants, that ran server-side at checkout. Three types existed. Line item scripts modified prices and applied discounts — BOGO logic, tiered pricing, bulk discount thresholds. Shipping scripts controlled which carriers appeared and at what cost . hiding express options for fragile items, showing local delivery for specific ZIP codes. Payment scripts filtered and reordered gateways . blocking certain payment methods for wholesale accounts, restricting cash-on-delivery by geography.
This was real business logic. B2B brands used payment scripts to surface only bank transfer or manual payment for wholesale accounts. Wholesale operations used line item scripts to apply customer-tag pricing that never appeared in the storefront. Complex promotions ran entirely inside Scripts without touching the storefront code. For the operators who built on this infrastructure, Scripts were not a feature . they were load-bearing structure.
The problem is that load-bearing structure nobody documents is the kind that collapses without warning.
The Timeline You Need to Know
Shopify announced the deprecation on March 12, 2026. Two dates matter. April 15, 2026: the Script Editor locked. No new Scripts, no edits, no bug fixes. June 30, 2026: all Scripts stop executing entirely. Shopify's developer changelog confirms both dates and states the deadline will not be extended again.
The deadline has already moved twice. Originally August 2024. Then August 2025. Now June 30, 2026. Shopify is done granting reprieves.
The April 15 date is the one most operators missed. Since mid-April, any Script still running in production has been frozen code. You cannot patch it. You cannot adjust it for a new promotion. You cannot fix an edge case a customer just surfaced. The window to repair anything in Scripts closed two months ago. The June 30 date just removes the frozen code entirely.
What Breaks if You Do Nothing
Here is the casualty drill. On July 1, your checkout still loads. Customers can still place orders. Nothing in the admin looks broken. The damage is invisible at first.
Your line item Scripts stop running. Custom discount rules disappear. Volume pricing reverts to standard. BOGO offers vanish. Any stacked discount logic you built over years returns to Shopify's native defaults . which are not your business rules.
Your shipping Scripts stop running. Every carrier you were hiding shows up. Every rate you were suppressing reappears. Local delivery shows for customers 400 miles out. Express appears for products that cannot ship express. The damage hits your fulfillment operation before it hits your revenue report.
Your payment Scripts stop running. According to Blackbelt Commerce, B2B wholesale accounts that relied on Scripts to surface only approved payment methods will suddenly see the full payment gateway list . including options your fulfillment partner cannot support in their region. Every wholesale customer suddenly sees retail payment options. For B2B-heavy stores, this is not an inconvenience. It is an operational breakdown.
The math is straightforward. If your Scripts handle 20% of orders and those orders disappear or process incorrectly for even a week, the revenue impact compounds fast. A $5M annual store with that exposure loses roughly $19,000 for every week the problem persists.
The 90-Day Bottleneck Audit Applied Here
I talk often about the 90-Day Bottleneck Audit . the discipline of scanning your operation every quarter for the single constraint that would break everything if it failed. Migration deadlines are not bottleneck events by accident. They expose bottlenecks that already existed. The Scripts deadline is surfacing a bottleneck most Plus operators have been ignoring: undocumented checkout logic written by developers who are no longer on the team.
In the Navy engine room, you do not get to miss a maintenance deadline because you were busy. The machinery does not care about your schedule. You put it on the calendar, you resource it, you execute. The operators who are scrambling right now in mid-June are not scrambling because the deadline was secret. They are scrambling because they treated a known deadline as someone else's problem until it became their emergency.
This is where the bottleneck audit earns its keep. If you had audited your checkout dependencies in Q1, you would have found the Scripts and had a full quarter to migrate. Instead, you are running a two-week sprint with frozen source code and no margin for error.
The Migration Path: Shopify Functions
Shopify Functions are not Scripts with a syntax change. The architecture is fundamentally different. Functions are WebAssembly modules that execute inside Shopify's core infrastructure in under 5 milliseconds . including during Black Friday traffic spikes. The Ruby interpreter is gone. The sandboxed execution environment is gone. WebAssembly runs natively on Shopify's infrastructure, which is why the performance ceiling is categorically higher.
Three paths exist for each Script you need to replace. First, use a native Shopify feature . automatic discounts now cover many BOGO and percentage-off scenarios without code. Second, install an App Store app . for standard use cases like volume discounts or payment method hiding by customer tag, an existing app may replace your Script in hours, not days. Third, build a custom Function . for logic that is genuinely store-specific, a developer familiar with Shopify CLI and JavaScript or Rust builds the Function as a private app.
Shopify's official migration guidance directs merchants to the Scripts Customizations Report in the admin. From Apps > Script Editor, the "Replace Shopify Scripts" banner lists every active Script with recommended replacement paths. Pull this report today. It is your inventory list.
The migration sequencing matters. Audit every active Script first. Map each to a Function type . Discount Functions for line items, Delivery Customization Functions for shipping, Payment Customization Functions for payment gating. Deploy the Function in staging, test it against the Script's expected outputs, then disable the Script after confirming the Function produces correct results. If you disable the Script and the Function is not live, checkout logic reverts to Shopify defaults for that interval. Do not create that window.
Multiple migration teams report the actual work runs four to six weeks when done properly . two weeks of stalling, three weeks of work, one week of cleanup. You have two weeks. That means the "done properly" window has passed. What remains is triage: identify which Scripts are business-critical, migrate those first, and feature-flag anything you cannot complete before June 23. The June 23 target gives you a seven-day buffer for hotfixes before the June 30 execution cutoff.
Battle Stations: Your Action List for This Week
Open the Script Editor today. Pull every active Script. Categorize by type and business impact. Anything touching wholesale pricing or B2B payment logic is Tier 1 . migrate it first. Standard promotional discounts are Tier 2. Edge-case shipping rules are Tier 3.
Check the App Store before building anything custom. For many line item and payment Scripts, a $29-per-month app replaces three days of developer time. The ROI calculation on that is obvious. Reserve custom Function development for logic that is genuinely proprietary.
If you have both a Script and a Function running simultaneously during the cutover period, the Script runs first. The Function receives already-modified prices. You can create double-discount events this way. Test your overlap configuration specifically. One merchant community thread documented losing 10 to 30 percent margin on every affected order because both discount layers applied before anyone caught the error.
Target June 23 as your internal go-live. Not June 30. June 23.
Doctrine Connection: Responsibility Beats Excuses
Shopify announced this deprecation. They extended it twice. They sent notifications. They published migration guides. The operators who are unready today had every resource available to be ready six months ago. The deadline is not the problem. The problem is the habit of treating known obligations as future emergencies.
Responsibility beats excuses. That is not a motivational line. It is a systems principle. A system that defaults to excuse-making when deadlines arrive will always be in triage mode. The operator who builds responsibility into the system . quarterly audits, documented dependencies, migration timelines that do not start the week before the cutoff . never faces this particular emergency.
You cannot change the June 30 date. You can change how you handle the next one.
FAQ
Q: What exactly happens to my store on July 1 if I haven't migrated?
Your Scripts stop executing entirely. Checkout still loads and customers can still place orders, but all custom logic built in Scripts disappears. Discounts revert to Shopify defaults, shipping options show every available carrier, and payment gateways display the full list regardless of customer type. The failure is silent . no error messages, just wrong business logic applied to every affected order.
Q: Can I still edit my Scripts before June 30?
No. The Script Editor locked on April 15, 2026. Any Script currently running in production is frozen code. You cannot fix bugs, adjust discount thresholds, or add new logic. Your only option is to migrate to Shopify Functions or a replacement app before June 30.
Q: How long does a migration to Shopify Functions actually take?
For straightforward Scripts replaceable by an App Store app, hours to a day. For custom Scripts requiring a new Function built from scratch, two to four weeks of development and testing. If you are starting today, prioritize App Store replacements for standard use cases and reserve custom Function builds for business-critical proprietary logic only.
Q: Is Shopify Functions available on plans below Plus?
Yes. Shopify Functions are available across all plans, which is a meaningful change from Scripts, which were Plus-exclusive. If you migrate to Functions, you are building on infrastructure the entire Shopify ecosystem uses . better documentation, broader app ecosystem support, and alignment with Shopify's long-term architecture.
Q: What if my developer who built the original Scripts no longer works with us?
This is the most common scenario for operators who missed the migration window. Start with the Scripts Customizations Report in your admin . it maps each Script to its function type and recommended replacement. For Scripts with no documentation, you may need to reverse-engineer the logic from the Ruby code itself before you can replicate it in a Function. Hire a Shopify Partner agency familiar with Functions if internal resources are not available. The cost of a two-week agency sprint is far lower than the revenue impact of broken checkout logic post-June 30.