01
Shopify Plus theme design and build
Custom Online Store 2.0 themes designed in Figma and built in Liquid, with sections your team can edit and performance budgets that hold.
FIG 01 · Shopify Plus Development
Shopify Plus agency for builds, migrations and headless stores
Custom Plus themes, checkout extensibility and Shopify Functions, B2B and multi-market setups, ERP integrations and SEO-safe migrations, built on Shopify Plus for brands that hold their own Plus plan.
See how it works
FIG 02 · Quick answer
What does a Shopify Plus agency do?
A Shopify Plus agency designs, builds and migrates stores on Shopify’s enterprise plan. Elgrith builds custom Plus themes, rebuilds checkout customisations with checkout extensibility and Shopify Functions, sets up B2B and multi-market stores, connects ERPs and CRMs, and migrates stores to Plus with every URL redirected, so rankings carry over.
- Stores on one Plus plan: your main store and 9 expansion stores
- 10
- Projects delivered since 2015
- 1,000+
- Clients across the USA, UK and India
- 250+
- Your theme code, apps and store data
- 100%
FIG 03 · Why it matters
Shopify changed in 2026. Your reasons for Plus should too.
From Shopify’s own news, pricing pages and developer docs, checked in October 2026.
01
All plans
B2B is no longer Plus-only
On 2 April 2026 Shopify extended B2B “to merchants on Basic, Grow, and Advanced plans, at no extra cost”. B2B alone is no longer a reason to upgrade.
Source: Shopify News, B2B for all, 2 Apr 2026(opens in a new tab)02
Aug 2025
checkout.liquid is sunset
checkout.liquid and additional scripts were sunset for the Thank you and Order status pages on August 28, 2025. Old checkout customisations need rebuilding with checkout extensibility.
Source: shopify.dev, checkout.liquid(opens in a new tab)03
9
Expansion stores included
Shopify’s UK Plus pricing page says your main store and 9 expansion stores are included as part of the monthly platform fee.
Source: Shopify UK, Plus pricing(opens in a new tab)
FIG 04 · Decide
Shopify vs Shopify Plus: do you need Plus?
Plus is Shopify’s enterprise plan. Since B2B came to every plan in April 2026, the real reasons to upgrade are checkout control, custom Shopify Functions, several stores and scale.
| Shopify (Basic to Advanced) | Shopify Plus | |
|---|---|---|
| Best for | Growing brands with one or a few stores | High-volume brands, several stores or complex operations |
| B2B and wholesale | Included since April 2026 | Included |
| Checkout customisation | Checkout editor and apps | Checkout extensibility with more control, including the information, shipping and payment steps |
| Shopify Functions | Through public apps | Custom apps with your own Functions too |
| Several stores | A separate plan for each store | Main store plus 9 expansion stores included |
| Platform fee | Listed on Shopify’s pricing page | $2,500 USD a month on a 1-year term or $2,300 on a 3-year term; £1,950 / £1,800 in the UK (Shopify, Oct 2026) |
Fees are Shopify’s own, checked on its Help Center and UK Plus pricing page in October 2026. Shopify says “Pricing is subject to change.” They are not our fees.
Read Shopify vs Shopify Plus in 2026FIG 05 · What you get
Shopify Plus development services
Design, development, integrations and migrations for Plus stores, from one team that also builds custom software and runs ecommerce SEO.
02
Checkout extensibility and Shopify Functions
Old checkout.liquid and Script customisations rebuilt as checkout UI extensions and Shopify Functions for discounts, shipping and payments.
03
B2B, wholesale and Shopify Markets
Company accounts, price lists and payment terms for wholesale, plus Markets and expansion stores for new countries and currencies.
04
ERP, CRM and 3PL integrations
Orders, stock, customers and prices synced with NetSuite or your ERP, your CRM and your warehouse, through the Admin API and webhooks.
05
Headless Shopify with Hydrogen or Next.js
Hydrogen on Oxygen, or Next.js on the Storefront API, when content complexity or performance targets justify going headless.
06
Shopify Flow and Launchpad automation
Flow workflows for tagging, fraud checks and stock alerts, and Launchpad for scheduled sales and product drops.
07
Speed and Core Web Vitals
Image, script and app clean-ups that keep Core Web Vitals in the green as the store grows.
08
Shopify Plus migration
Moves from Magento, WooCommerce, BigCommerce or Salesforce Commerce Cloud with data, redirects and integrations planned.
Deliverables
12
deliverables, in writing
Included in every build, written into your fixed quote before work starts.
FIG 06 · Integrations
Shopify Plus, connected to the rest of your business
Plus stores rarely work alone. These are the connections we build most often.
- ERP
- CRM
- 3PL warehouse
- Email and SMS
Shopify Plus
- Online store
- B2B portal
- Expansion stores
- Headless storefront
ERP sync
- Source
- NetSuite or your ERP
- In Shopify
- Products, stock, prices and orders
- Result
- One source of truth for stock and finance
CRM sync
- Source
- Orders and customers
- In your CRM
- Contacts, orders and lifetime value
- Result
- Sales and service see the whole customer
3PL and fulfilment
- Source
- Paid orders
- In the warehouse
- Pick lists and shipping labels
- Result
- Tracking back in Shopify automatically
Email and SMS
- Source
- Browsing, carts and orders
- In Klaviyo
- Segments and flows
- Result
- Abandoned-cart and win-back flows
B2B price lists
- Source
- Customer terms in your ERP
- In Shopify
- Companies, catalogues and payment terms
- Result
- Wholesale buyers order online
Headless storefront
- Source
- Storefront API and your CMS
- Front end
- Hydrogen or Next.js
- Result
- Content-rich pages that stay fast
FIG 07 · Flagship build
Proof: product engineering beyond themes
Kenerate AI is our flagship build, an all-in-one AI image and video studio we designed and engineered. It is not a Shopify project; it shows the product, API and front-end depth we bring to Plus stores.
- 200+ AI models behind one app, one login and one credit balance
- 23+ studios and tools, with up to 4K output
- MCP & CLI: use Kenerate inside Claude, ChatGPT, Cursor and 19+ AI apps
- 1,000+ projects for 250+ clients since 2015
Tools: 23+ studios with guides for every use caseDesigned and engineered by Elgrith
- AI models in one app
- 200+
- Studios and tools
- 23+
- Maximum output
- 4K
- Guides
- 500+
FIG 08 · Migration
Shopify Plus migration
From Magento or Adobe Commerce, WooCommerce, BigCommerce or Salesforce Commerce Cloud, with every URL mapped so rankings carry over.
06principles
301 redirect map
Every product, category, page and blog URL mapped to its new home and tested before launch.
Data migration
Products, variants, customers and order history moved, with counts reconciled and a test import checked by your team.
Theme and content
A new Plus theme, with content, images and metadata moved across, not retyped.
Apps and integrations
Old extensions replaced with Shopify apps, Functions or custom integrations, one by one.
Cutover plan
A planned launch window, a content freeze and DNS switched with the old store kept on standby.
SEO checks after launch
Crawl, redirects, Search Console and rankings watched after launch.
The redesign SEO checklist
FIG 09 · Checklist
How to choose a Shopify Plus agency
Partner tiers describe a relationship with Shopify. What an agency has shipped tells you more. Ask for these.
06principles
Plus-specific work shipped
Checkout extensions, Shopify Functions and B2B setups they have built, not just themes.
A written migration plan
Redirect map, data mapping, cutover and rollback, in writing before work starts.
Performance budgets
Agreed limits for page weight, scripts and apps, checked on every release.
Code and account ownership
Theme code in your repository and the store under your own Plus plan.
Honest headless advice
An agency that will tell you when you don’t need headless.
An accessible storefront
Templates, checkout extensions and forms tested against WCAG 2.2 AA.
Website accessibility
FIG 10 · Measurement
How we measure a Plus store after launch
Launch is not the finish line. We track the numbers that show whether the build and the migration worked.
| Metric | What it tells you | How we measure it |
|---|---|---|
| Conversion rate | Whether the new store sells as well as the old one, or better | Shopify analytics, compared with the pre-launch baseline |
| Core Web Vitals | Real-user speed on mobile | Chrome UX Report and Search Console |
| Organic traffic and rankings | Whether SEO carried over after migration | Search Console, redirect logs and rank tracking |
| Checkout errors | Whether extensions and Functions behave | Checkout logs and test orders |
| Sync errors | Whether ERP, CRM and 3PL data flows | Integration logs and alerts |
| Average order value | Whether bundles, discounts and upsells work | Shopify analytics by channel |
Targets are agreed with you after discovery. We don’t promise uplift figures before we have seen your store and data.
FIG 11 · Process · 7 steps
Plan the move, keep the rankings
A fixed written quote and a written migration plan before work starts. Nothing launches until the redirect map has been tested.
- Step 01
Discovery and audit
Your current store, apps, integrations, traffic and goals, with a written scope and a fixed quote.
- Step 02
Migration and redirect plan
Data mapping, the full 301 map and the cutover plan, signed off with you.
- Step 03
Design
Templates and key journeys designed in Figma, mobile first.
- Step 04
Build
Theme, checkout extensions, Shopify Functions, B2B and Markets set up and tested.
- Step 05
Integrations
ERP, CRM, 3PL and marketing tools connected and tested with real orders.
- Step 06
QA and test orders
Every journey and payment method tested on real devices, plus accessibility and speed checks.
- Step 07
Launch and SEO checks
Planned cutover, redirects verified, Search Console monitored and issues fixed fast.
FIG 12 · What you get
Everything included
Written into your fixed quote, so you know exactly what you are paying for before work starts.
12items
- Store audit and migration plan
- Written scope and fixed quote
- Figma designs for key templates
- Custom Online Store 2.0 theme
- Checkout extensions and Shopify Functions
- B2B and Markets setup, where needed
- ERP, CRM and 3PL integrations
- Full 301 redirect map
- Data migration with reconciled counts
- Speed and accessibility checks
- Training for your team
- Theme code and documentation, all yours
FIG 13 · Tech & tools
The tools behind the work
Proven, well-supported tools, chosen for your project and set up in accounts your business owns.
- Shopify Plus
- Liquid
- Online Store 2.0
- Checkout extensibility
- Shopify Functions
- Shopify Flow
- Launchpad
- Shopify Markets
- B2B on Shopify
- Hydrogen
- Oxygen
- Storefront API
- Admin API
- GraphQL
- Next.js
- Klaviyo
- NetSuite
- Figma
FIG 14 · Who it’s for
Shopify Plus work for every stage.
Whether you are moving to Plus, already on it, or going headless.
3 audiences
Moving to Plus
From Magento, WooCommerce or BigCommerce.
A planned replatform with every URL redirected, data moved and integrations rebuilt, so launch day is quiet.
- Written migration and redirect plan
- Test imports checked by your team
- Old store on standby at cutover
- SEO monitored after launch
Already on Plus
Get more from the plan you pay for.
Checkout extensions, Functions, B2B, Markets and Flow set up properly, plus theme and speed work.
- Checkout customisations rebuilt
- Expansion stores for new markets
- App clean-up for speed
- Work in your existing theme
Headless
A storefront without theme limits.
Hydrogen or Next.js on the Storefront API when your content or performance goals need it, and not before.
- Honest headless-or-not advice
- Content from your CMS
- Edge hosting on Oxygen or Vercel
- Checkout stays on Shopify
FIG 15 · Working with us from the USA and UK
Built in New Delhi. Run on your hours.
Every project gets a point of contact in New York or London and an engineering team in New Delhi. Here is how today’s working days line up, live.
New York
North America
--:--ET
New Delhi team Your working day- Shared working time
- ≈ 3 hours today
- New Delhi is
- 10.5 h ahead
- Live calls, your time
- 9 a.m. to 12 p.m. ET
London
UK & Europe
--:--UK
New Delhi team Your working day- Shared working time
- ≈ 4.5 hours today
- New Delhi is
- 5.5 h ahead
- Live calls, your time
- 9 a.m. to 1:30 p.m. UK
Three ways to work together
- 01
Fixed-scope project
A written scope, one fixed price and a dated plan. Suits websites, apps and MVPs.
- 02
Dedicated team
Designers and engineers on your roadmap every month, billed monthly.
- 03
White label
For US and UK agencies: our work, your brand, unbranded deliverables.
Every engagement
- Fixed quote in USD, GBP or INR after a free 30-minute call
- NDA before discovery. You own all code, designs and content
- A working demo every sprint, not status slides
- Reply within one business day, calls inside your hours
Book a call
Calls on ET or UK hours
FIG 16 · Hire Shopify Plus developers
Hire Shopify Plus developers: three ways to work with us
Need Plus developers inside your team rather than a project? A dedicated developer or team works in your sprints and your store.
| Fixed-scope project | Dedicated Shopify Plus developer | Dedicated team | |
|---|---|---|---|
| Best for | A build, migration or checkout rebuild | Ongoing theme and app work | A roadmap of builds, integrations and tests |
| Who manages | We do, against a written scope | You do, in your sprints | We do, with your ecommerce lead |
| How it’s priced | A fixed written quote | A monthly rate, agreed in writing | A monthly rate, agreed in writing |
| Ownership | Code and IP assigned to you | Code and IP assigned to you | Code and IP assigned to you |
FIG 17 · Compare
Is headless Shopify worth it?
| Online Store 2.0 theme | Headless (Hydrogen or Next.js) | |
|---|---|---|
| Best for | Most Plus brands | Content-heavy brands with strict performance or design needs |
| Editing | Shopify’s theme editor and sections | Your headless CMS plus Shopify for products |
| Apps | Most Shopify apps work out of the box | Many apps need custom front-end work |
| Build and upkeep | Lower | Higher: a separate front end to host and maintain |
| Checkout | Shopify checkout | Shopify checkout |
FAQ
Frequently asked questions
Straight answers about Shopify Plus Development with Elgrith.
A Shopify Plus agency designs, builds, integrates and migrates stores on Shopify’s enterprise plan. That includes custom themes, checkout extensions and Shopify Functions, B2B and multi-market setups, ERP and CRM integrations, headless storefronts and migrations from other platforms with full redirect maps.
FIG 18 · Related
Keep exploring
Free 30-minute call
Move to Plus without losing a ranking.
Tell us about your store and your plans. After a free call you get a written scope, a migration plan and a fixed quote.
Pick a day for your call
OpenPick a day. You'll choose a time in your own time zone on the next step.