I will shopify scripts to functions checkout api shopify plus b2b fix shopify liquid


About this gig
Checkout script errors can block payments, discounts, shipping rules, and sales fast.
Protect your Shopify store before hidden script turns into lost revenue.
You need Shopify Functions migration, not risky guesswork or random code edits.
Shopify Plus, B2B, and wholesale stores use this to keep checkout logic stable.
This protects revenue by transforming fragile scripts into tested checkout logic.
- Shopify Scripts audit + PDF notes
- Ruby Scripts to Shopify Functions migration
- Resolve Shopify checkout + checkout API errors
- Optimize Shopify Liquid theme code
- Deploy Shopify API REST/GraphQL integration
- Build BOGO, volume, tiered discount rules
- Payment customization: COD, PayPal, cards
- Shipping rules + delivery customization
- B2B wholesale pricing + customer tags
- Checkout validation: limits, blocked items
- Cart transform rules: bundles, upsells
- Google Sheets, webhooks, Shopify Flow
- Payment gateway + theme bugs
- Speed optimization + test report
- Loom walkthrough + clean docs
Every build is tested across desktop, mobile, cart, and checkout before delivery.
Message me with your script or checkout issue.
I will provide the safest migration path and clear next step.
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 Bezalel Peter
High Converting Shopify Stores, Built for Growth
- FromUnited Kingdom
- Member sinceMar 2026
- Avg. response time1 hour
Languages
English, French, Spanish, German, Italian
My Portfolio
Other Website Maintenance Services I Offer
FAQ
Can you migrate Shopify Scripts to Shopify Functions?
Yes. I can migrate Shopify Scripts to Shopify Functions for discount rules, shipping rules, payment customization, checkout validation, B2B logic, and Shopify Plus checkout needs.
Can you fix Shopify Liquid or checkout errors?
Yes. I can resolve Shopify Liquid code issues, checkout errors, broken discount logic, payment gateway problems, shipping rule issues, and custom Shopify script bugs.
Do you work with Shopify Plus stores?
Yes. This gig is best for Shopify Plus stores that use advanced checkout logic, Shopify Scripts, Shopify Functions, checkout API, B2B wholesale pricing, payment rules, or shipping customization.
Can you help with B2B or wholesale pricing logic?
Yes. I can work on Shopify B2B, wholesale pricing, customer tag rules, tiered pricing, volume discounts, checkout validation, and custom discount logic.

