I will customize shopify checkout extensibility, add upsells and fix payment bugs

C
cornelius_oluwa
C
cornelius_oluwa
Cornelius.O
customize shopify checkout extensibility, add upsells and fix payment bugs
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customize shopify checkout extensibility, add upsells and fix payment bugs
Full Screen
Full Screen
customize shopify checkout extensibility, add upsells and fix payment bugscustomize shopify checkout extensibility, add upsells and fix payment bugscustomize shopify checkout extensibility, add upsells and fix payment bugs

About this gig

Is your Shopify checkout causing abandoned carts, payment errors, or a poor customer experience?

I provide professional Shopify checkout optimization using the latest Checkout Extensibility standards to improve conversions, fix technical issues, and create a seamless buying experience for your customers.

My Services:

  • Shopify Checkout Extensibility setup
  • One-click post-purchase upsells
  • Payment gateway and checkout bug fixes
  • Checkout Champ, ClickFunnels, and API integrations
  • Custom checkout branding and styling

Why Choose Me?

  • Built with Shopify's latest standards
  • Mobile-friendly and conversion-focused
  • Fast delivery and reliable communication
  • Quality work with dedicated support

Please contact me before placing your order so we can discuss your requirements and choose the best solution for your store.

  • Platform

    • Shopify

  • Website type

    • E-Commerce store
    • Business
    • Landing page
    • Blog

  • Programming language

    • HTML & CSS
    • LiQuid
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 Cornelius.O

Cornelius.O

Building Better Shopify Stores

  • FromNigeria
  • Member sinceJul 2026
  • Avg. response time1 hour

  • Languages

    English, Spanish, Italian, Czech, Arabic, Greek, Estonian, Irish, Korean, French, German
Hi, I'm Cornelius, a dedicated Shopify specialist passionate about helping businesses build, fix, and optimize their online stores. Whether you're dealing with theme errors, Liquid code issues, checkout problems, broken layouts, or other Shopify bugs, I provide reliable solutions with attention to detail and fast communication. I focus on delivering clean, efficient work that improves your store's performance and user experience. My goal is to solve problems quickly, meet deadlines, and ensure every client is satisfied with the final result.

Other Website Maintenance Services I Offer

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