Checkout extensibility & Shopify Functions
Custom checkout UI extensions, payment and delivery customizations, and discount logic built as Functions. Scripts migrated before the Shopify deprecation.
Shopify Plus development for brands that scale
Proximate Solutions builds, extends and optimizes Shopify Plus stores with custom apps, checkout extensibility, A/B testing and CRO. 25 years in business. 6 apps on the Shopify App Store.
- Shopify Partner
- Shopify App Developer
- Shopify Certified Developers
+51%Orders, Gunnars
5.77%Conversion, Formless Beauty
25Years in business
6Apps on the Shopify App Store
5+Shopify Plus brands supported
Trusted by brands that sell serious volume
5+Shopify Plus
brands
brands
50+Shopify
brands
brands
- [Hickhock Tools logo]
- [Me & Mom logo]
What does a Shopify Plus development agency do?
A Shopify Plus agency builds and extends enterprise stores using Plus-only features: checkout extensibility, Shopify Functions, B2B, Markets and Flow. We handle the full stack, from theme and custom apps to integrations, migration and ongoing CRO.
B2B & wholesale on Plus
Company accounts, price lists, payment terms and wholesale forms on one store.
Markets & expansion stores
Multi-currency, multi-language and region stores for US, UK and AU launches.
Shopify Flow automation
Inventory, tagging, fraud and fulfilment workflows that remove manual ops work.
Replatforming to Plus
Magento, WooCommerce and BigCommerce migrations with 301 mapping that protects SEO.
Integrations that just work
ERP, 3PL, reviews, subscriptions and support tools connected to your Plus store.
Klaviyo
Yotpo
Recharge
Gorgias
Bold Commerce
Shopify apps we have built and published
Six live apps on the Shopify App Store, built and maintained by our in-house app team under Digital Perfection LLC FZ. The same team builds private custom apps for client stores.
View all apps on the App Store
Schema Pilot
SEO & structured data
Adds structured data automatically from your product titles, prices and images, so products qualify for rich results and AI answers.
- Auto-filled Product schema
- Rich result eligibility
- No code required
Limitify
Checkout rules
Sets customizable minimum order amounts with checkout validation, so orders below your threshold can't go through.
- Order minimums
- Checkout validation
- Custom customer messages
Rule Craft
Cart & checkout notes
Shows shipping notices, gift reminders and policy updates at cart and checkout, with customer blocking rules.
- Cart and checkout notes
- Placement control
- Customer blocking
Perfect Forms
Forms & wholesale
Drag-and-drop builder for registration, wholesale and contact forms, added to any page or popup from the theme editor.
- Drag-and-drop editor
- Wholesale registration
- Page or popup placement
Perfect Store Locator
Retail & stockists
A fully customizable store locator so customers find your retail locations and stockists fast.
- Unlimited locations
- Custom map styling
- Search and filters
Donora
Donations
Creates donation products with suggested, minimum, maximum and custom amounts, plus recurring giving.
- Flexible amounts
- Recurring donations
- Cause-led campaigns
Need an app that doesn't exist yet?
We build private custom Shopify apps for one store's exact requirement: split testing, promotions, wholesale portals, admin automation.
Growth features, custom built per store
Off-the-shelf apps rarely fit how a Plus brand sells. We build conversion features as native code or custom apps, test them on real traffic, and keep what lifts revenue.
- 01
Conversion rate optimization
Funnel audits, session analysis and prioritized fixes for PDP, cart and checkout.
- 02
A/B split testing apps
Lightweight custom testing apps per store. Tests run natively on your theme, with no third-party script weight.
- 03
Custom promotions
Tiered discounts, gift-with-purchase, bundles and BOGO logic built with Shopify Functions.
- 04
Live shopping setup
Shoppable live streams and video commerce tied to inventory and checkout.
- 05
Product quiz setup
Guided-selling quizzes that recommend products and feed answers into Klaviyo segments.
Shopify Plus stores we build and grow
Gunnars
Theme performance work, merchandising and CRO on a high-traffic Plus store.
+51%Orders (21.8K)
+46%Sessions (686.7K)
1.94%Conversion rate
Formless Beauty
5.77%Conversion rate
35KOrders
291.7KSessions
Shireen Lakdawala
Custom Shopify theme for a designer fashion label, built mobile first and ready to scale to Plus. [Add result metric]
How long does a Shopify Plus build take?
A Shopify Plus build takes 4-10 weeks, depending on custom apps, integrations and data migration. A standard Shopify store takes 2-4 weeks.
01 Discover & audit
Goals, analytics, tech stack
02 UX & design
Key templates, mobile first
03 Build & integrate
Theme, apps, Functions, ERP
04 Launch
Redirects, tracking, speed
05 Optimize
A/B tests, CRO, support
Shopify Plus build: 4-10 weeks
Standard Shopify store: 2-4 weeks
Shopify Plus questions, answered
Still unsure? Email info@proximatesolutions.com
What is the difference between Shopify and Shopify Plus development?
Shopify Plus development uses enterprise features standard plans lack: checkout extensibility, Shopify Functions, B2B, expansion stores and Shopify Flow. Standard Shopify development covers theme, apps and integrations on the core plan.
Do you build custom Shopify apps?
Yes. We have 6 public apps on the Shopify App Store and build private apps for client stores, including A/B testing tools, promotion engines, wholesale forms and checkout rules.
Can you migrate my store to Shopify Plus without losing SEO?
Yes. Every migration includes URL mapping, 301 redirects, metadata transfer and post-launch Search Console monitoring.
How do you run A/B tests on Shopify Plus?
We build a lightweight custom split-testing app for each store, so variants run natively on your theme. Each test has a hypothesis, sample size and success metric set upfront.
Which markets do you work with?
We build and grow Shopify stores for brands in the United States, United Kingdom and Australia.
Get a free Shopify Plus store review
Send your store URL. A senior Shopify developer reviews speed, UX and conversion gaps and replies with a prioritized action list within 1 business day.