I will customize cs cart multi vendor fix bugs addon API payment gateway


About this gig
Need a reliable CS-Cart Multi-Vendor developer to customize, fix, or improve your marketplace?
I help marketplace owners solve CS-Cart issues, customize features, install add-ons, and integrate third-party services to improve their online store.
My services include:
- CS-Cart Multi-Vendor customization
- Marketplace website customization
- CS-Cart add-on installation & modification
- Bug fixing and troubleshooting
- Vendor dashboard customization
- Vendor registration setup
- Product management improvements
- Checkout customization
- Payment gateway integration
- Stripe & Stripe Connect integration
- PayPal integration
- API integration
- Shipping integration
- Theme customization
- Store performance improvements
I can help connect your marketplace with services like Stripe, PayPal, ShipStation, EasyPost, Mailchimp, Klaviyo, Zapier, and other third-party platforms.
Perfect for:
- Multi-vendor marketplaces
- B2B marketplaces
- Wholesale platforms
- Online marketplaces
- Ecommerce stores
Contact me before ordering so we can discuss your CS-Cart requirements and find the best solution.
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 Harry
Website design and website migration Expert
- FromUnited Kingdom
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, German, Spanish
Other Website Development Services I Offer
FAQ
Can you customize an existing CS-Cart Multi-Vendor marketplace without affecting future updates?
Yes. I focus on upgrade-friendly customization using CS-Cart's supported customization methods, including add-ons, hooks, and configuration changes where applicable. This helps reduce conflicts when updating your marketplace.
Can you fix errors or bugs caused by CS-Cart add-ons or custom code?
Yes. I can troubleshoot CS-Cart issues related to add-ons, integrations, checkout problems, product management, vendor features, and other marketplace functionality. Please share the error details before ordering.
Can you integrate payment gateways or third-party APIs into my CS-Cart marketplace?
Yes. I can help with payment gateway integrations, API connections, and external services such as Stripe, Stripe Connect, PayPal, shipping providers, email platforms, and other business tools.
Do you customize CS-Cart Multi-Vendor features like vendor dashboards and commissions?
Yes. I can customize marketplace features such as vendor registration, vendor dashboards, product workflows, commission settings, order management, and other vendor-related functionality based on your requirements.
I have a unique marketplace idea. Can you develop a custom CS-Cart solution for it?
Yes. Every marketplace has different requirements. Contact me with your idea, workflow, and current CS-Cart setup so I can review the best approach and provide a suitable solution.

