I will build custom shopify functions for checkout, cart, and discounts

S
sonu179208
S
sonu179208
Sonu Kumar
build custom shopify functions for checkout, cart, and discounts
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build custom shopify functions for checkout, cart, and discounts

About this gig

Need advanced Shopify Functions development for your store? I can build custom Shopify Functions to create scalable backend logic for checkout, cart, discounts, shipping, and validation.


I specialize in Shopify Functions, checkout customization, discount logic, cart rules, and advanced store behavior.


What I can do:

  • Custom Shopify Functions development
  • Discount Functions
  • Cart & checkout validation
  • Product & order restrictions
  • Shipping / delivery customization
  • Payment method logic
  • Customer-based rules
  • B2B / wholesale logic
  • Quantity / MOQ validation
  • Custom pricing logic
  • Shopify Plus integrations
  • API & app integration support
  • Clean, scalable & optimized code


Perfect for Shopify Plus stores, B2B workflows, enterprise stores, and advanced business logic.


Fast Delivery | Clean Code | Scalable Logic | Long-Term Support

  • Website type

    • E-Commerce store

  • Website features

    • Other
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 Sonu Kumar

Sonu Kumar

Shopify App, Theme Developer, Custom Apps, ERP Integration and Automation

5.0(11)
  • FromIndia
  • Member sinceSep 2018
  • Avg. response time1 hour
  • Last delivery2 years

  • Languages

    Hindi, English
Shopify developer specializing in custom theme development and app development. I build Liquid-based themes, dynamic sections, public & private Shopify apps, REST API & GraphQL integrations, ERP automation, and Shopify Plus customizations. I write clean, well-structured code and communicate clearly throughout every project. Available for quick fixes and long-term partnerships. Message me before ordering — let's build something great for your store!

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