New store setup and migration, custom app development, theme development, checkout-grade coding solutions, and turning your storefront into an installable app.
Setup / migration → apps → theme → coding → app conversion
Answer: GR Trading handles Shopify store setup, migration, private app development, theme development, custom Liquid sections, checkout extensions, Shopify Functions, B2B workflows, integrations, app replacement, speed fixes, and long-term support.
Answer: Checkout rules need server-side enforcement when discounts, payment methods, delivery rules, cart validation, or B2B purchasing rules must stay reliable even if a browser script fails or a storefront app is removed.
“Shopify Functions enable you to customize Shopify's backend logic by running custom code during the checkout process.”
Shopify Dev Docs on Function APIs
Launching on Shopify for the first time, or moving off WooCommerce, Magento, or a custom-built site without losing rankings, orders, or customer history.
Store setup: theme install, apps, payments, shipping, and taxes configured for launch.
Migration of products, customers, and order history from your current platform.
URL mapping and 301 redirects so search rankings carry over.
Domain, DNS, and email cutover planned around a launch window.
Staging preview before go-live, with a rollback plan.
Post-launch QA across devices, checkout, and key customer flows.
Private and public Shopify apps for workflows, integrations, and portals that off-the-shelf apps cannot model.
Most merchant projects need a private app built around one business, with scoped API permissions, webhook signature verification, and code ownership in your name. Public apps are a separate product business with billing, onboarding, and app-store review.
Online Store 2.0 themes and sections built for performance, flexibility, and conversion — including pixel-accurate Figma-to-Shopify conversion.
Custom logic that runs in your theme, at checkout, or server-side — for the requirements too specific for any app.
Calculators, personalization, bundles, cart rules, and variant displays built into your theme.
Discount, payment, delivery, and validation logic enforced server-side, plus checkout UI extensions.
Company accounts, custom pricing, bulk ordering, PO fields, and approval workflows.
ERP, CRM, shipping, WhatsApp, and Shopify Flow connected through webhooks and APIs.
Checkout extensibility and advanced customization for Plus merchants.
App cleanup, Core Web Vitals fixes, and ongoing support after launch.
Turn your existing Shopify storefront into an installable app — an app icon on the home screen, push notifications for orders and promotions, and an app-like browsing experience, without a full native rebuild.
If you need deep device features, offline mode, or app-store discovery, see our dedicated Mobile App Development page instead.
Case studies for this category will appear here once approved for publishing.
Swap this card for an approved client name, screenshot, and result once available.
Swap this card for an approved client name, screenshot, and result once available.
Swap this card for an approved client name, screenshot, and result once available.
Answer: Yes. We plan product, customer, and order migration, URL redirects, and a launch checklist so rankings and data carry over.
Answer: We build self-contained sections and snippets with documentation so future theme updates are easier.
Answer: Some Functions work on standard plans; payment and delivery customization generally require Shopify Plus. We confirm plan requirements before quoting.
Answer: You do. Apps are built for your Shopify account and delivered with documentation and code ownership in your name.
Start with a conversation. We will explore your requirements and shape the scope, timing and budget together.
Book a Shopify Consultation