Choosing a partner
A Shopify Plus agency for the whole operation
A Shopify Plus agency is a Shopify Partner that builds on, and moves businesses onto, Shopify's Plus plan.
Much Plus agency work is the storefront: the theme, the design, the conversion rate. That work matters, and it's the part customers see.
Crossdock is built around what sits behind it. Stock, orders, the warehouse and the ledger move onto Plus as one cutover, under one contract, with one party accountable for the result.
£1m
Professional indemnity cover
Held with AXA
3
Payment milestones
Project start, interim review, go-live
4
Routes onto Shopify delivered
Magento, WooCommerce, Wix, EKM
2015
Trading since
StoreBuilder Ltd, company 09590027
Two different engagements
A storefront build and an operations migration are both called hiring a Plus agency. They start from different places, and they're judged on different mornings.
Where the brief starts
A storefront build
The theme, the design and the conversion rate
A Crossdock engagement
Where stock, orders and money live today, and where they need to live on Plus
Stock on the morning after go-live
A storefront build
Carried over by an import app, checked by eye
A Crossdock engagement
One system named as the source of stock truth, counted against the old system before the switch
The accounts
A storefront build
A connector app, set up after launch
A Crossdock engagement
In scope from day one: how orders, refunds and fees reach the ledger, and how they reconcile
The cutover
A storefront build
A launch date
A Crossdock engagement
A rehearsed plan, run on a copy of live data before the real night
Specialist work
A storefront build
In-house, or not in scope
A Crossdock engagement
Specialist partners, named to you before signature, under one contract
A business whose back office already runs cleanly may only need the first. A business that sells across channels, holds stock in more than one place, or reconciles by hand every morning needs the second. The storefront is then built on top of it.
B2B and wholesale moves are in scope: company accounts, trade catalogues and payment terms, and how those terms reach the ledger. What each Shopify plan carries for trade is on Shopify B2B, and the Magento side of it on Magento to Plus.
One contract, one accountable party
Crossdock contracts as prime. The platform move, the integrations behind it and the cutover sit in one agreement, with Tony Cooper accountable for the whole engagement.
Specialist slices go to partners, and each is named to you before anything is signed. The store, the domain and the data stay in accounts you own throughout.
The price is fixed against a written scope and paid in full or across three milestones: project start, interim review and go-live.
What a Shopify Plus agency costs
The published market
$20,000 to $250,000+
A Magento to Plus migration over two to six months, as Krish Technolabs and The Commerce Shop publish it, read 8 September 2026.
Crossdock's working band
£15,000 to £25,000
For a migration delivered as prime contractor, with £10,000 as a floor for a simple move.
How it's paid
Fixed price
Against a written scope, in full or across three milestones: project start, interim review and go-live.
The licence is separate, and paid to Shopify: Shopify Plus pricing. What moves a migration's number is set out on Magento to Plus.
Six questions for any Shopify Plus partner
Shopify's Partner Directory tells you who Shopify lists. These questions tell you who will own the cutover. Put them to every firm on the shortlist.
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01
Who is accountable if the stock count is wrong the morning after go-live?
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02
Is the cutover rehearsed, and on what data?
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03
Which firms do the specialist work, and are they named before signing?
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04
What does each payment milestone depend on?
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05
What professional indemnity cover does the firm hold, and with whom?
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06
Who owns the store, the domain, the code and the data afterwards?
Crossdock's answers are on working with us and how a migration runs. StoreBuilder Ltd is a Shopify Partner.
What the practice brings to it
Tooling built in-house
Telford audits the structure of every page. Manet reviews how it renders. Euler maps the links. Point gates each release before it deploys. What each one checks.
Routes onto Shopify
Magento, WooCommerce, Wix and EKM, each delivered. The Magento to Plus route sets out the largest of them.
The systems, compared
Stock control, order management and accounting connectors, compared on what each vendor publishes. The operations reference.
Shopify Plus agencies: questions
What is a Shopify Plus agency?
A Shopify Plus agency is a Shopify Partner that builds on, and moves businesses onto, Shopify Plus, the plan for larger and more complex businesses. Some agencies centre on the storefront and its design; others, Crossdock among them, centre on the stock, orders and accounts behind it.
Is there a Shopify Plus agency in the UK?
Yes. Shopify's Partner Directory lists partners by location. Crossdock is the operations practice of StoreBuilder Ltd, a UK company trading since 2015 and a Shopify Partner, and it moves UK businesses onto Shopify Plus as prime contractor.
How much do Shopify Plus agencies charge?
Published rates for a Magento to Shopify Plus migration run from around $20,000 to well past $250,000, over two to six months (Krish Technolabs and The Commerce Shop, their 2026 cost guides, read 8 September 2026). Crossdock's working band is £15,000 to £25,000, with £10,000 as a floor for a simple move, at a fixed price paid in full or across three milestones: project start, interim review and go-live.
Do you need a Shopify Plus agency or a consultant?
A consultant advises; an agency delivers. The systems review is the advisory read: where the ceiling is and which stack fits, free. The migration is the delivery, run by one accountable party under one contract. Many businesses need the first before they know whether they need the second.
Put your shortlist question to us
Tell us what the store runs on today, where the stock lives and what the accounts are connected to. We'll reply with how the move would be scoped.