Browse categories
Explore
Fiverr Pro
English
$
USD
I will setup shopify checkout extention payment gateways solve shopify checkout error
Colins
About this gig
Are you losing sales due to Shopify checkout errors, broken payment gateways, or outdated checkout settings? I am here to optimize your checkout experience and fix any technical issues instantly!With Shopify's shift to Checkout Extensibility, legacy scripts and outdated payment setups often cause page freezes, payment declines, and conversion tracking failures. I specialize in setting up modern Shopify Checkout Extensions, configuring payment gateways, and resolving critical checkout bugs so your store runs smoothly.
What I Offer:
- Shopify Checkout Extensibility & Extension setup
- Payment Gateway Integration (Shopify Payments, Stripe, PayPal, Klarna, Authorize.net) Fixing "Cannot Accept Payments" & checkout freeze errors Web Pixels & conversion tracking setup (GA4, Meta, Google Ads)
- Custom branding, upsells, & checkout app block configuration Express checkout optimization (Shop Pay, Apple Pay, Google Pay)
Why Work With Me?
100% Satisfaction & Fast Turnaround
Expertise in Checkout Extensibility & Bug Resolution
Dedicated post-setup support to ensure smooth transactions
Don't let a broken checkout ruin your sales. Contact me now or place your order today!
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 Colins
Colins
eCommerce Specialist
- FromSpain
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, German, Spanish
Experienced eCommerce Specialist & Web Developer dedicated to building high-converting, user-friendly online stores.
I specialize in:
• Shopify Checkout Extensions & Payment Setup
• Product Configurators (Zakeke, Kickflip, Customily)
• Fourthwall Merch Store Design & Setup
• Wix & Multi-Platform Store Maintenance
• Amazon FBA Product Research & VA Services
Whether launching a print-on-demand shop or fixing checkout errors, I optimize your store for sales and seamless customer experience.
Let's discuss your project and grow your brand today!
FAQ
What is Shopify Checkout Extensibility?
Checkout Extensibility is Shopify's modern framework replacing legacy checkout.liquid scripts. It allows secure, app-based checkout customizations, express payment setups, and custom UI extensions
Why is my Shopify store showing "This store cannot accept payments"?
This usually happens when your primary payment gateway is inactive, unverified, misconfigured, or restricted in your region. I will identify the exact root cause and reactivate your payment processing correctly.
Can you set up third-party payment gateways like Stripe or PayPal?
Yes! I can connect, configure, and thoroughly test any supported payment gateway, including Shopify Payments, Stripe, PayPal, Klarna, and regional processors.
Will fixing checkout errors affect my existing store data or order history?
Not at all. All fixes and extension setups are performed safely in your Shopify admin without touching your order records, customer database, or product listings.
Do you test the checkout flow after setting up extensions or payment gateways?
Yes, I perform end-to-end test transactions using Shopify Test Mode to ensure payment authorization, tax calculations, and order creation function flawlessly before going live.
