Custom Shopify development
Shopify built your way — not limited by a theme.
Custom Shopify development takes your store beyond default templates — bespoke themes built in Shopify's Liquid language, custom apps that automate your workflows, and API integrations for ERP sync, subscriptions and headless commerce. PRP Webs engineers all three.
Last updated: June 2026
The three pillars of custom Shopify development
1. Custom theme development
Bespoke Online Store 2.0 themes coded in Liquid and JSON templates — dynamic drag-and-drop sections your team can edit without code, responsive on every device, and designed for conversion.
2. Custom app development
Private apps built only for your store — admin extensions that fit your team's workflows, API integrations to ERP/CRM/PIM, and checkout UI extensions and Functions for personalised buyer journeys.
3. Headless & custom storefronts
For total front-end control, we build on the Storefront API with React and Next.js — sub-second custom storefronts, mobile apps and omnichannel experiences powered by your Shopify backend.
Plus: integrations & checkout
Real-time GraphQL connections to NetSuite, Salesforce and fulfilment systems, and custom checkout extensions and post-purchase upsells that lift AOV.
Frequently asked questions
What is custom Shopify development?
Custom Shopify development is building a store beyond default templates — bespoke themes coded in Shopify's Liquid language, custom apps that automate workflows, and API integrations for inventory, subscriptions or headless commerce. It is how growing brands get features standard themes and public apps cannot provide.
What is included in custom Shopify development?
Custom Shopify development covers bespoke theme design and build, private app development, Storefront API and GraphQL integrations, ERP/CRM/PIM sync, performance optimisation and custom checkout extensions — all built around your specific business logic.
Can you build a fully custom Shopify theme from scratch?
Yes. We design and build pixel-accurate custom themes using Online Store 2.0 architecture — sections, blocks and metafields — so merchants can edit freely in the Theme Editor without touching code.
Do you integrate Shopify with third-party systems?
Yes. We connect Shopify to ERPs (NetSuite, SAP), CRMs (Salesforce, HubSpot), PIMs (Akeneo) and fulfilment systems via Shopify's GraphQL Admin API or custom middleware.
How do you protect SEO during a custom build?
We maintain all existing URL structures, set canonical tags correctly, ensure structured data carries over and run a pre-launch crawl against the baseline so no ranking equity is lost.
How long does custom Shopify development take?
A custom theme build typically takes 4–8 weeks. Larger projects with private apps, ERP integrations or headless storefronts take longer. PRP Webs gives you a fixed week-by-week plan before development starts.
Related guides
- What is custom Shopify development? A plain-English guide →
- Headless Shopify development →
- How to create Shopify section schema →
- Metafields in Shopify: a complete guide →
- Working with product metafields in Shopify →
- Do's and don'ts of customizing a Shopify theme →
- Shopify Online Store 2.0, explained →
- An introduction to Shopify templates →
Ready for a store that performs?
Tell us what you need — we'll reply with a clear scope and timeline.