I will migrate shopify checkout to checkout extensibility, functions and pixels API

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faith_wax
Faith W

About this gig

Is your Shopify checkout still relying on legacy checkout.liquid, Scripts, ScriptTags, or outdated tracking?

I help merchants move checkout and tracking logic to Shopifys current extensibility stack.


Services include:

  • Checkout Extensibility migration
  • Shopify Functions development
  • Discount, delivery and payment Functions
  • Cart & checkout validation
  • Web Pixels API setup
  • GA4 ecommerce tracking
  • Meta Pixel and customer events
  • ScriptTag to app embed migration
  • Checkout UI extensions
  • Shopify CLI deployment and testing


I'll audit your setup, map legacy logic to the right Shopify technology, implement the required extensions or Functions, test key customer flows, and document the changes.


This is ideal if discount rules, shipping logic, checkout customization, purchase tracking, Meta Pixel, GA4, or storefront scripts are failing. Shopify Scripts ceased executing on June 30, 2026, while storefront ScriptTags are scheduled to stop running on March 1, 2027.


Message me before ordering with your store URL, the problem, and the app or script involved.

I'll confirm the scope and recommend the right package. If everything is clear, place your order and Ill get started today.


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Get to know Faith W

Faith W

Shopify Technical Specialist Web Pixels Checkout Extensibility Expert

  • FromUnited States
  • Member sinceSep 2026
  • Languages

    English, Spanish, French
I'm a specialized Shopify technical developer focused on backend infrastructure migrations, custom data layers, and checkout optimization. With Shopify permanently deprecating legacy checkout scripts and cutting off ScriptTag mutations, I help mid-market e-commerce brands safely modernize their tech stacks without losing conversion data or breaking their backend business logic. My core expertise includes: If your ad platform tracking has gone quiet or your custom checkout rules are failing, I am here to build a compliant, high-performing solution. Let's get your store fully optimized!