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I will migrate shopify scripts to functions and customize shopify checkout with API fix
Harper Collins
About this gig
Need to migrate Shopify Scripts to Shopify Functions or fix broken checkout customizations?
I help Shopify merchants replace outdated Shopify Scripts with supported Shopify Functions, troubleshoot checkout issues, and implement custom ecommerce functionality that supports a smoother shopping experience.
WHAT I OFFER:
- Shopify Scripts to Shopify Functions migration
- Shopify discount function development and customization
- Checkout extensibility and UI extensions
- Custom shipping and payment rule migration
- Shopify Functions API integration
- Shopify Plus checkout customization
- Shopify script errors and compatibility fixes
- Checkout testing, troubleshooting, and optimization
WHY CHOOSE MY SERVICE?
- Professional Shopify development support
- Clean, maintainable custom functionality
- Solutions tailored to your business requirements
- Clear communication and reliable delivery
- Thorough testing before project completion
IMPORTANT: Shopify Functions capabilities depend on your store plan and technical requirements. I will review your existing scripts and confirm migration compatibility before development.
Ready to modernize your Shopify checkout?
CONTACT ME OR PLACE ORDER TODAY!
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Get to know Harper Collins
Harper Collins
Ecommerce Developer Digital Marketing and Design Expert
- FromUnited States
- Member sinceOct 2026
Languages
English, French, Spanish, Italian, Portuguese, Dutch, German
I'm a professional Ecommerce Website Developer, Digital Marketing Specialist, and Graphic Designer with 7+ years of experience helping businesses build, optimize, and grow their online presence.
I specialize in Shopify, WordPress, Wix, WooCommerce, website migration, custom development, SEO, social media marketing, email campaigns, and creative branding.
My focus is delivering responsive websites, effective marketing strategies, and visually appealing designs tailored to your business goals.
Let's bring your ideas to life with quality, creativity, and professionalism!
FAQ
Do I need Shopify Plus for this service?
Not always. Some Shopify Functions are available on standard Shopify plans, while certain custom functions and checkout UI customizations require Shopify Plus. I will confirm your store's eligibility before starting.
Will my existing discounts and checkout rules continue working?
My goal is to preserve your existing business logic wherever Shopify Functions support it. I will review the scripts, identify limitations, and test the migrated functionality before delivery.
Can you fix Shopify checkout errors and broken functions?
Yes. I can troubleshoot supported Shopify Functions, checkout extensions, discount conflicts, and integration issues. Please contact me with details so I can assess the problem.
What do you need from me to get started?
I need your Shopify plan, existing script code or screenshots, a description of the required checkout behavior, and appropriate collaborator access. Please do not share passwords.
Can you migrate my existing Shopify Scripts to Shopify Functions?
Yes. I can review your existing scripts, identify supported Shopify Functions replacements, and migrate compatible discount, shipping, or payment logic based on your store requirements.
