Shopify Plus Migration Guide: Cost, Timeline, Checklist and a Zero-Downtime Launch

The short answer: upgrading an existing Shopify store to Plus is a plan change that takes days, plus 2 to 6 weeks for whatever you build on top of it. Replatforming onto Shopify Plus from another system takes 6 to 24 weeks depending on the source platform and how many integrations have to be rebuilt. Shopify charges from USD 2,300 a month for Plus. Our migration projects are fixed-price: USD 949 to 5,000 for a straightforward store migration, and from USD 15,000 for Shopify Plus replatforming from Magento, Salesforce or a custom platform, or any move that rebuilds ERP integrations.

The rest of this guide explains where those numbers come from, and the order of work that keeps a migration boring. Boring is the goal. The brands that lose revenue in a migration almost never lose it to Shopify; they lose it to a redirect map nobody finished, a gift card balance nobody imported, or a discount rule that quietly stopped working at checkout.

What is Shopify Plus, and when is it worth it?

Shopify Plus is Shopify's enterprise plan. It runs on the same platform as every other Shopify store, which is why an upgrade does not involve moving any data. What changes is what you are allowed to build and what you pay.

As of 30 September 2026, Shopify's Plus pricing page lists USD 2,300 a month on a three-year term or USD 2,500 a month on a one-year term. Higher-volume or more complex businesses move to a variable platform fee based on revenue, which Shopify quotes through its sales team. The plan includes your main store plus 9 expansion stores, with further stores at USD 300 a month each.

What that money buys, in practical terms:

• Native B2B. Company accounts with multiple buyers and locations, catalogues and price lists per company, payment terms, and wholesale and retail running from one store.
• Checkout customisation. Checkout UI extensions on the information, shipping and payment steps, and custom Shopify Functions for discounts, delivery and payment logic. On standard plans, customisation stops at the thank-you and order status pages.
• Expansion stores. Separate stores for another brand, a wholesale-only storefront or a region that needs its own catalogue, all on the one subscription.
• Scale. Higher API limits for integrations, automation such as Launchpad for scheduled sales, and card rates that Shopify negotiates at volume.

When Plus is worth it: you need one of the features above to trade the way you already do, or your processing volume is high enough that better card rates cover much of the subscription. When it is not: the only reason on the list is wholesale pricing. A B2B app can give a standard Shopify store trade accounts, price lists and purchase-order checkout for a small monthly fee, which we cover in Shopify B2B without Plus. For a side-by-side of the plans, read Shopify vs Shopify Plus: when upgrading actually pays.

The two Shopify Plus migration paths

Almost every search for "Shopify Plus migration" is really one of two different projects. It matters which one you are in, because the cost, risk and timeline are an order of magnitude apart.

Path 1: upgrading a standard Shopify store to Plus

Your store is already on Shopify. Shopify switches the plan, and your products, customers, orders, theme, apps, domain and URLs stay exactly as they are. There is no data migration and no SEO risk from the switch itself.

The work is everything you upgraded for: moving checkout customisations onto checkout UI extensions, rebuilding discount or shipping logic as Shopify Functions, setting up B2B companies and price lists, launching expansion stores, and connecting an ERP through the higher API limits. That is where the 2 to 6 weeks go.

This is the path Ferkos Fine Jewelry took with us. They started on a Basic Shopify plan and now run on Shopify Plus, with order volume growing from USD 10,000 to USD 1.5 million over an eight-year partnership. The platform never had to change; the store grew into Plus.

Path 2: replatforming to Shopify Plus from another system

Shopify Plus replatforming means building a new Shopify Plus store and moving your business onto it from Magento (Adobe Commerce), BigCommerce, WooCommerce, Salesforce Commerce Cloud, SAP Commerce (Hybris), Neto (Maropost), or a custom platform. Everything is in scope: data, theme, apps, integrations, URLs and the launch itself.

Each source platform has its own traps:

• Magento / Adobe Commerce: configurable products and attribute sets must be flattened into Shopify's options and metafields, customer groups become B2B companies or customer tags, and custom extensions have to be replaced with apps or rebuilt. Our Magento to Shopify Plus migration guide covers this path in detail.
• WooCommerce: plugin-driven features (bundles, subscriptions, B2B pricing) are the real scope, and WordPress URLs rarely match Shopify's fixed /products/ and /collections/ structure, so the redirect map is large.
• BigCommerce: product data maps cleanly, but custom fields, option sets and price lists need planning, and the URL structure differs.
• Salesforce Commerce Cloud and SAP Commerce (Hybris): the storefront is usually the easy part. The work is untangling integrations that lived inside the old platform (OMS, PIM, pricing and promotions engines) and deciding what moves into Shopify, what moves into apps and what stays in the ERP.
• Neto (Maropost): common in Australia. Watch kits and bundles, customer groups and the eBay and marketplace connections that many Neto stores rely on.

How long does a Shopify Plus migration take?

The honest variable is not catalogue size. It is how many systems the store talks to and how clean the data is. These are the ranges we plan around for a store with a committed decision-maker on the client side:

Two things stretch timelines more than anything technical: waiting for decisions (design approvals, which apps to keep, who signs off UAT) and discovering mid-project that the source data is messier than anyone thought. Both are cheaper to find in week one than in week eight, which is why discovery comes first in every plan below.

How much does a Shopify Plus migration cost?

Budget for three separate things: the Shopify subscription, the migration project, and the running costs of apps and integrations afterwards.

1. The Shopify Plus subscription. USD 2,300 a month on a three-year term, USD 2,500 on a one-year term, or a variable platform fee for higher-volume businesses (checked on shopify.com, 30 September 2026). Card processing is extra and varies by country.

2. The migration project. This is where agency quotes vary wildly, often because nobody publishes a price. We do. These are the fixed-price ranges from our public pricing:

For context, other agencies publish much wider bands for the same work. Optimum7's guide, for example, puts Plus replatforming at USD 10,000 to 100,000 depending on catalogue size (checked 30 September 2026). The spread is real: a 300-product WooCommerce store and a multi-brand Magento install with an ERP, a PIM and B2B pricing are both "a Plus migration".

3. Running costs. Apps often replace functionality that was built into the old platform or its extensions. List every feature you rely on today, find its Shopify equivalent, and add the monthly app fees to your comparison before you sign. That line is where migration business cases most often turn out to be wrong.

The Shopify Plus migration process, step by step

This is the order of work we follow. It applies to both paths; an upgrade simply skips the data and redirect phases.

Step 1: Discovery and scope (week 1 to 2)

• Inventory every feature, app, extension, integration and custom script on the current store, and decide keep, replace or retire for each.
• Export a crawl of every indexed URL plus Search Console's top pages and backlink targets. This becomes the redirect map.
• Pull sample exports of products, customers and orders to see the real data quality, not the assumed one.
• Agree the launch window (avoid your peak season) and who signs off each phase.

Step 2: Shopify Plus set-up and architecture

• Plan the store structure: one store with Shopify Markets for currencies and languages, or expansion stores for separate brands, regions or a wholesale storefront.
• Design the data model: product options, metafields and metaobjects for specifications, collections, and B2B companies and catalogues.
• Choose apps for anything Shopify does not do natively, and test them before the build depends on them.

Step 3: Data migration

Shopify's own guidance is to import products first, then customers, then historical orders, so orders connect to the right products and customers. Our Shopify Plus data migration checklist:

• Products: titles, descriptions, variants, SKUs, barcodes, prices, compare-at prices, weights, images with alt text, inventory by location, SEO titles and meta descriptions, and specifications into metafields.
• Customers: names, emails, phone numbers, addresses, tags, marketing consent status and notes. Consent must come across as it was given, not as "subscribed" for everyone.
• Customer passwords: these cannot be migrated from any platform, so accounts arrive inactive. With Shopify's current customer accounts that no longer matters: customers sign in with their email and a one-time 6-digit code, with no password at all. If you stay on legacy accounts, plan account invite emails for launch day.
• Historical orders: imported with line items, totals, taxes, fulfilment and payment status so customers see their history and your reports stay continuous. Turn off staff order notifications first: Shopify sends a new order email to notified staff for every imported order.
• Gift cards and store credit: import balances with their existing codes so cards already in customers' wallets keep working. This is the item most often forgotten, and it becomes a support problem on day one.
• Subscriptions: active subscribers need their contracts and stored payment methods moved into a Shopify subscription app. Payment methods held by gateways such as Stripe or Braintree can often be migrated so customers are not asked to re-enter card details; confirm this with your subscription app before you set a date.
• Content: pages, blog posts, navigation, and reviews through your reviews app's import.

Step 4: Theme and storefront build

• Either customise a well-built purchased theme or build a custom one. Our view on which to choose is in custom vs premium Shopify themes.
• Build to Core Web Vitals from the start: image sizes, app script weight and above-the-fold content. A migration is the cheapest moment to get this right.
• Rebuild the templates that earn your organic traffic (collection and product pages) with the same headings and content depth the old ones ranked with.

Step 5: Checkout, discounts and Shopify Functions

Checkout is where old platforms and old Shopify stores differ most from today's Shopify Plus. checkout.liquid is gone, and Shopify Scripts stopped running on 30 June 2026. Any tiered discount, free gift, shipping rule or payment filter must be rebuilt as a Shopify Function or replaced with an app, and any checkout UI as checkout UI extensions. If you are upgrading an older Plus-bound store, audit this first: it is the most common reason "nothing changed" stores start charging the wrong price.

Step 6: B2B, Markets and Flow

• B2B: recreate trade customers as companies with locations, assign catalogues and price lists, and set payment terms. Our DutchRusk and Worthy Products case studies show what a Shopify Plus trade storefront connected to an ERP looks like.
• Markets: set currencies, languages, domains or subfolders and duties per region, and make sure each market's URLs are in the redirect plan and in your hreflang.
• Flow: rebuild the old platform's cron jobs and manual routines (fraud holds, low-stock alerts, tagging VIP or trade customers) as Shopify Flow automations. Ideas are in our Shopify Flow automation list.

Step 7: Integrations

ERP, 3PL, PIM, accounting, marketplaces and email. Decide which system owns each piece of data (usually the ERP for stock and price, Shopify for orders) and build the sync around that. Connectors should check their own work on a schedule rather than trusting every webhook, which is how the Odoo connector in our Worthy Products build repairs any drift hourly. During the migration window, keep stock in sync on both the old and new store so neither oversells.

Step 8: SEO and redirects

• Map every old URL with traffic, rankings or backlinks to its closest new page with a 301 redirect. Never redirect everything to the homepage.
• Carry over titles, meta descriptions, H1s, image alt text and structured data.
• Crawl the finished store against the redirect list before launch and fix every 404 and redirect chain.
• Update canonical tags, hreflang and the XML sitemap, and keep Search Console verified for the new store.

Step 9: Testing and UAT

• Place real test orders for every payment method, shipping zone, discount, B2B company and market.
• Check tax and duties, emails and notifications, and that orders reach the ERP and 3PL correctly.
• Test on real phones, not just a desktop browser resized. Most of your customers will meet the new store on a phone.

Step 10: Launch without downtime

• Lower the domain's DNS TTL a few days ahead.
• Freeze catalogue changes on the old platform for the final 24 to 48 hours.
• Run a delta sync: import the orders, customers and gift card changes created since the main import.
• Switch the domain, remove the storefront password, and place live orders to confirm payments.
• Keep the old platform read-only (not deleted) for at least a few months, for reference and disputes.

Step 11: The first 30 days after launch

• Check Search Console coverage and 404 reports daily for two weeks, then weekly, and add redirects for anything missed.
• Compare conversion rate, average order value and checkout completion against the same period before launch.
• Watch payment success rates and fraud flags, which behave differently on a new gateway set-up.
• Collect the list of small fixes staff find in the first week, and fix them in one batch.

Shopify Plus migration checklist

The condensed version, for printing or pasting into your project plan:

The risks, and how to avoid each one

• Lost rankings. Cause: missing or lazy redirects. Fix: a URL-by-URL map built from a crawl and Search Console, tested before launch.
• Broken checkout logic. Cause: discounts and shipping rules that lived in Scripts, checkout.liquid or a Magento extension. Fix: rebuild them as Shopify Functions and test every rule with real carts.
• Angry customers on day one. Cause: dead gift card codes, "forgot password" loops, missing order history. Fix: import gift cards with original codes, use one-time-code sign-in, import order history.
• Overselling during the cutover. Cause: two stores trading on stale stock. Fix: keep stock synced on both, freeze the catalogue, and run a delta sync at launch.
• Subscribers churning. Cause: forcing every subscriber to re-enter a card. Fix: migrate payment methods through your subscription app where the gateway allows it.
• Budget blowouts. Cause: integrations and data problems discovered late. Fix: discovery that pulls real exports in week one, and a fixed-price quote with change requests approved in writing.
• Launching into peak season. Fix: launch at least six weeks before your busiest trading period, never inside it.

Do you need Shopify Plus migration experts?

A small store upgrading to Plus with no checkout customisation can often be handled in-house with Shopify's own onboarding. Once a migration includes an ERP, B2B pricing, subscriptions, multiple stores or a large redirect map, it pays to use a partner who has done it before, because the expensive mistakes are the ones you only learn by making them.

If you are comparing Shopify Plus migration services, ask each partner four questions: which of your current features will need an app or custom build, how they migrate customer sign-in and gift cards, who owns the redirect map and how they test it, and whether the price is fixed. The answers tell you more than any portfolio.

Tripster Developers has been a Shopify Partner since 2016 and has handled hundreds of enterprise-grade migrations since then. We work with more than 4,000 merchants, from independent stores to enterprise Shopify Plus brands across New Zealand, Australia, the United States and Canada, and we build the integrations ourselves, including our own Odoo connector. Our Shopify migration service covers replatforming from any platform, and our Shopify Plus development team handles the checkout, B2B and integration work after an upgrade. If you want to know what else sits on our price list, our guide to how much a Shopify developer costs sets out every rung.

Tell us what you sell and what you are moving from, and we will come back with a fixed-price quote and a week-by-week migration plan, at no cost and with no obligation.