Two stores with the same number of products can receive very different migration quotes. One might need a clean catalog import and a few theme adjustments. The other might have subscription records, custom pricing, and a warehouse integration that has to keep running throughout the move.
Our Shopify migration projects start at $2,500 for a smaller, clearly defined scope. To work out whether that starting point is relevant to your store, we need to look at what you’re moving and what needs rebuilding.
Below are the parts of the project that usually change the price, plus a way to compare quotes. The Shopify migration checklist covers the corresponding tasks in more detail.
The seven main Shopify migration cost drivers
| Cost driver | What changes the scope | Why it affects cost |
|---|---|---|
| Data | Record types, custom fields, variants, history, quality | More mapping, transformation, test imports, and reconciliation |
| Storefront | Template count, design change, content model, accessibility | More design, theme engineering, content entry, and QA |
| Integrations | ERP, PIM, WMS, subscriptions, tax, fulfillment, CRM | Each system adds workflows, edge cases, testing, and ownership |
| Search preservation | URL volume, content change, international setup | More redirect mapping, metadata work, crawl testing, and monitoring |
| Markets and channels | Languages, currencies, B2B, POS, regional catalogs | More data rules, content, permissions, and end-to-end scenarios |
| Launch constraints | Downtime tolerance, seasonal timing, data-change rate | More rehearsal, delta logic, coordination, and rollback planning |
| Source condition | Export quality, documentation, access, plugin debt | More discovery and cleanup before reliable migration can begin |
Catalog size matters, but complexity per record often matters more. Five hundred highly customized products with inconsistent options can require more work than several thousand clean, uniform products.
1. Discovery and migration planning
This is where the team inventories data, URLs, content, integrations, operational workflows, launch constraints, and target Shopify features.
Planning cost increases when:
- The source platform is custom or poorly documented
- Several teams edit the same data in different systems
- Business-critical workflows live in plugins, spreadsheets, or staff knowledge
- Nobody owns the current analytics, redirects, or integration map
- The migration also includes a redesign, rebrand, or new international model
If these questions stay unanswered until development, the team may have to redo work it has already built. A short planning phase helps expose the expensive unknowns before you agree on the full budget.
2. Data export, transformation, and import
The visible record count is only the beginning. A data scope should identify:
- Products, variants, options, media, collections, tags, and custom attributes
- Inventory by location and any source-of-truth rules
- Customers, addresses, consent, account state, and tags
- Orders, discounts, taxes, refunds, fulfillment, and customer relationships
- Pages, articles, files, authors, dates, and metadata
- Gift cards, subscriptions, loyalty, reviews, or other app-owned data
Each type needs a source export, target mapping, transformation rules, test import, exception log, and reconciliation method.
Cost rises when data is inconsistent, relationships are implicit, the source cannot export cleanly, or history must behave inside Shopify rather than remain in an archive.
3. Storefront design and development
There are three common storefront scopes:
Adapt a suitable existing theme
The team configures a theme, creates essential templates and sections, applies the brand, migrates content, and validates the main journeys. This keeps cost controlled when requirements align with the theme.
Build a custom Shopify theme
The design system, templates, sections, merchandising controls, responsive states, accessibility, and performance behavior are created around the business. This costs more but can reduce long-term workarounds.
Rebuild the storefront headlessly
A custom frontend introduces additional architecture, hosting, deployment, content, API, search, monitoring, and ongoing engineering work. If that path is being considered, compare the complete ownership model in our headless Shopify cost guide.
Ask which of these the quote includes, how many templates you’ll receive, and who will enter the content. “Storefront included” leaves too much room for different expectations.
4. Apps and integrations
Replacing an app is cheap only when the app performs a simple, isolated job. Integrations become expensive when they influence pricing, inventory, orders, customer access, fulfillment, tax, subscriptions, or financial reporting.
For each integration, estimate:
- Requirements and data ownership
- Configuration or custom development
- Historical or setup-data migration
- Authentication, permissions, and failure handling
- End-to-end testing with the external system
- Monitoring, documentation, and support ownership
The least expensive option may be to remove or consolidate part of the stack. A migration is a useful time to challenge old dependencies instead of copying them automatically.
5. URL redirects and organic-search protection
Redirects are part of the search work, but they aren’t the whole job. The scope can include:
- Source URL discovery from sitemaps, crawls, analytics, and search-performance data
- Old-to-new URL decisions and redirect implementation
- Titles, descriptions, headings, body content, canonicals, and structured data
- Navigation, internal links, breadcrumbs, pagination, and faceted paths
- International URLs and language relationships
- Pre-launch crawl comparison and post-launch monitoring
Cost increases with URL volume, several domains or languages, major information-architecture changes, and years of accumulated redirect chains.
Rankings can change after a migration, even with careful preparation. Ask which pages will be monitored, what the pre-launch baseline is, and who will investigate problems afterward.
6. Testing, rehearsal, and launch
The launch budget should include more than a final browser check.
- Representative data validation and source-to-target reconciliation
- Product discovery, cart, checkout, account, and payment scenarios
- Tax, shipping, discount, gift card, refund, and fulfillment scenarios
- Analytics, consent, pixels, email, feed, and reporting checks
- Mobile, browser, accessibility, and performance validation
- Test migrations, timing, final data delta, and launch rehearsal
- Domain, redirect, certificate, rollback, and post-launch monitoring plans
Low downtime, fast-changing orders or inventory, and several operational teams create more coordination and rehearsal work.
A scope model you can use before requesting quotes
List the main parts of the project and what you know about each. This is enough to start a useful conversation with an agency:
| Workstream | Known volume | Complexity | Evidence needed to accept it |
|---|---|---|---|
| Products and variants | Source counts by status | Field and option rules | Reconciled counts plus sample validation |
| Customers and orders | Counts by date and state | History and relationship depth | Totals, field samples, and workflow tests |
| Storefront | Template and section inventory | Adapted versus custom | Approved responsive templates and states |
| Integrations | Named systems and flows | Configuration versus custom | End-to-end scenario passes |
| Redirects and content | URL and content inventory | Preserve versus restructure | Crawl results and priority-URL checks |
| Launch | Data-change rate and downtime | Simple switch versus staged cutover | Rehearsed runbook and go/no-go criteria |
This gives agencies enough information to explain their assumptions. It also makes competing quotes easier to compare.
What can reduce migration cost safely
- Clean and deduplicate source data before the implementation team transforms it
- Decide what must remain operational in Shopify and what can be archived
- Keep the first release focused on migration-critical functionality
- Choose one owner for product, content, redirect, and integration decisions
- Provide working source exports and access early
- Use representative products and orders to resolve mapping before the full import
- Rehearse the migration so launch time is measured rather than guessed
- Separate desirable redesign ideas from requirements that protect sales and operations
Reducing validation, redirect work, or launch rehearsal may lower the quote, but it also removes the evidence that the move is safe.
Quote warning signs
Treat a migration estimate cautiously when it:
- Uses only product count and page count to define scope
- Says “all data” without listing record types, fields, and history depth
- Includes apps without naming the workflows they must support
- Promises no SEO loss
- Leaves redirects, analytics, consent, or post-launch monitoring to someone else without naming that owner
- Has no test migration, reconciliation, launch runbook, or rollback criteria
- Does not distinguish theme configuration, custom theme work, and headless development
- Omits what the merchant team will be able to edit after launch
If a quote is much lower than the others, ask what’s excluded before assuming you’ve found the better deal. Missing redirect work or integration testing will still need to be paid for by someone.
Get the scope before the full quote
If you don’t yet have a reliable inventory, start with a small planning engagement. Agree on the deliverables in advance: the data and systems involved, redirect risks, launch steps, and a written scope that another team could also quote against.
That is the purpose of the Shopify Migration Readiness Review. The plan is usable even if another team performs the migration, so the first decision does not lock you into the whole project.