Migrate Shopify Scripts to Functions Before Checkout Logic Breaks (Claude Cowork Self-Install Kit)

Rebuild your discount, shipping, and payment logic in Shopify Functions before checkout silently misprices orders.

Our discounts and shipping rules run on Shopify Scripts and they shut off June 30, so if we don't migrate, checkout silently breaks and customers see the wrong prices. We know we should have moved already but we're not sure where to even start rebuilding it.

That's the leak. It isn't effort; Scripts already stopped executing, so the promo and shipping logic your checkout depends on is running on borrowed time or already broken.

What this kit does

You scope your existing Script logic (discounts, shipping-rate rules, payment-method customizations), rebuild it as Shopify Functions inside a custom app, test it on a development store so behavior matches the old setup exactly, and push to production so promos and shipping discounts keep working. Shopify Scripts stopped executing on June 30, 2026 with no grace period, so this is the remediation that keeps checkout correct.

What you can expect

Discount, shipping, and payment rules preserved through the Scripts cutoff, zero checkout-logic regressions versus your pre-migration baseline, and mis-priced orders or lost shipping-discount eligibility avoided.

Figures shown are illustrative examples, not guarantees. Actual results depend on your business, tools, and usage.

Who it's for

Built for Shopify store owners and the agencies that run their stores, especially anyone whose checkout still depends on legacy Scripts.

What's included

Skip building from scratch. No coding. You get the exact workflow, prompts, and setup guide, and your own AI agent installs it step by step at your own pace:

• Start Here: your tailored starter prompt and a map of the whole kit
• Project Instructions: the brain your own AI agent runs on for this build
• Your Business Context: a guided fill-in so the agent tailors the build to you
• Workflow Briefing: the plan, the inputs, and what done looks like
• Task List your agent follows to stand it up
• MCP Connection Guide for the tools involved
• Tool Setup Checklist for accounts, keys, and permissions
• Prompt Library, including the ready-to-run prompt for this workflow
• Troubleshooting and Maintenance guide for the common snags
• Next Steps and Roadmap: what to install next
• How to Run This Workflow once it is live

How to install this kit

Connect Shopify at claude.com/connectors and authorize your store. Open the kit in Claude Cowork and run the included prompt. Step-by-step instructions ship inside every kit, so you're never guessing.

See How Self-Install Kits Work for the full walkthrough.

Tools

Required: Claude with Cowork, plus your Shopify store (custom app access for Functions). Recommended: a development or staging store to test against. If you've been pricing a Shopify Scripts migration agency, this is the install-it-once alternative, an automation kit, blueprint, and workflow template you set up yourself with your own AI agent.

Requires Claude with Cowork enabled (a paid Claude plan). This is a self-install kit you run yourself with your own AI agent, not a done-for-you service.

Premium install kit. One workflow, set up and running with your own AI agent.