I will migrate shopify scripts to functions custom checkout offers payment rules


About this gig
Shopify Scripts are sunsetting. Are your checkout discounts, shipping rules and payment logic broken or about to break? Dont lose sales or conversions.
I migrate Shopify Scripts to Shopify Functions so your Shopify Plus checkout keeps working, faster and upgrade-safe.
Services:
- Shopify Scripts to Functions migration (Script Editor replacement)
- Custom checkout offers: BOGO, tiered, bulk and volume discounts
- Payment customization: hide, rename, reorder payment methods
- Delivery customization and shipping discount rules
- Cart and checkout validation, cart transform bundles
- Checkout extensibility and Checkout UI extensions
- Custom Shopify app (Rust/JS), tested on a dev store, QAd
- Fixes for broken Script Editor discounts
Perfect for Shopify Plus merchants, agencies and B2B wholesale stores. You get clean code, full testing, docs and zero checkout downtime.
Message me before ordering with your Script Editor code and Ill send a free migration plan. Click Order Now to secure your checkout!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know preeet hon
WordPress Developer
- FromNigeria
- Member sinceOct 2026
Languages
English
Other Website Development Services I Offer
FAQ
Do I need Shopify Plus?
Yes, Scripts only ran on Plus. Functions are also available on other plans through custom apps.
Will my checkout go down during migration?
No. I build and test on a dev or staging store first, then deploy live.
Can you replicate my exact Script logic?
Yes. Send your Script Editor code and I’ll map each line item, shipping and payment script to a Function.
What if a Script can’t be recreated one-to-one?
I’ll tell you before starting and propose the closest Functions-based alternative.
Do you offer support after delivery?
Yes. Premium includes 30 days. Basic and Standard include a short bug-fix window.

