Shopify Legacy Customer Accounts Are Deprecated - Here's Everything You Need to Know

If you run a Shopify store and your customers log in with an email and password, this update directly affects you. As of February 2026, Shopify has officially deprecated legacy customer accounts. That means no new feature updates, no technical support, and a confirmed sunset date coming later this year.

If you are still on the old system, the clock is ticking. But before you panic, here is the good news — the new Shopify Customer Accounts experience is genuinely better for your customers, easier to manage, and built for the future of ecommerce.

This guide covers exactly what has changed, what it means for your store, and how to migrate without disrupting your customer experience.

What Does "Deprecated" Actually Mean?

When Shopify says legacy customer accounts are "deprecated," it means the old system has been officially retired from active development. In practical terms:

• New stores can no longer enable legacy customer accounts. Any store launched after February 2026 is automatically on the new system.
• Existing stores not actively using legacy accounts are locked out. If you switched away earlier or never enabled it, you cannot go back.
• No more feature updates. Whatever functionality legacy accounts currently have is all they will ever have.
• No more technical support. If something breaks on your legacy account pages, Shopify will not fix it.
• A final sunset date is coming. Shopify has confirmed the hard shutdown will be announced later in 2026.

This is not a "monitor and wait" situation. It is a "plan and migrate" situation.

What Were Shopify Legacy Customer Accounts?

For context, legacy customer accounts were the original account system built into Shopify. They relied on:

• Email and password login — the classic combination most customers recognise.
• Liquid templates — files like customers/account.liquid, customers/login.liquid, and customers/register.liquid that merchants could customise directly inside their theme code.
• Storefront API customer mutations — such as customerCreate, customerUpdate, and customerAccessTokenCreate used by custom storefronts and headless builds.

Over the years, many merchants built heavily customised account experiences on top of this system — custom dashboards, loyalty integrations, subscription portals, and more. All of that was possible because the account pages lived inside the theme files and could be edited with code.

That flexibility is now being replaced with something more structured, more secure, and more scalable.

What Are the New Shopify Customer Accounts?

The new Customer Accounts system is a completely different architecture. Rather than being embedded in your theme, customer account pages are managed separately from your storefront. This means theme updates will never break your account pages again.

Here is what the new system brings:

Passwordless Authentication

Customers no longer log in with a password. Instead, they enter their email address and receive a six-digit one-time passcode. This is faster, more secure, and eliminates one of the biggest sources of customer support tickets — "I forgot my password."

Social Sign-In

Customers can sign in using their Facebook or Google account, reducing friction at login and increasing the likelihood they will complete purchases on return visits.

Built-In Store Features

The new accounts natively support features that previously required apps or custom code:

• Store credit — customers can view their balance and apply it at checkout
• Self-serve returns — customers can initiate a return directly from their account page
• Subscription management — native support for subscription products
• Saved payment methods — faster repeat checkout

App Block Customisation

Instead of editing Liquid code, merchants customise the new account pages using app blocks inside a visual editor. This is no-code, upgrade-safe, and far easier to manage. Over 800 apps already support the new Customer Accounts framework.

One Sign-In, Everything Unlocked

Customers sign in once and gain access to all account features and app extensions. No more fragmented login experiences across different integrations.

Why Is Shopify Making This Change?

This is not an arbitrary update. Shopify has been building toward this architecture for several years, and the reasoning is clear.

Security. Password-based login is the single biggest vulnerability in ecommerce authentication. Data breaches, credential stuffing attacks, and phishing all exploit stored passwords. Passwordless, one-time-code authentication eliminates that entire attack surface.

Consistency. By separating account pages from the theme, Shopify can ship improvements to customer accounts that every merchant gets automatically — no code updates, no theme edits, no compatibility issues.

Scalability. The new system is built on Shopify's extension architecture, the same foundation as Checkout Extensibility. It is designed to handle B2B, multi-market, and enterprise-level commerce in a way the old Liquid-based system never could.

Developer experience. Theme developers no longer need to include legacy account Liquid files. Apps can extend customer accounts using Shopify Extensions without touching template code. This makes building and maintaining integrations significantly cleaner.

The pattern is consistent with everything Shopify has done since checkout extensibility launched. They are systematically moving every customer-facing surface to a sandboxed, extension-based architecture. Legacy customer accounts were always going to follow.

What Breaks When You Migrate?

This is where merchants need to pay close attention. The migration is not just a settings toggle — certain customisations and workflows will not carry over automatically.

Things That Do NOT Transfer

• Custom Liquid account templates — anything you have built in customers/account.liquid, customers/login.liquid, customers/register.liquid, or similar files will not work in the new system
• Workflow triggers based on legacy accounts — automations in Shopify Flow that trigger on "customer account activated" or "customer account deactivated" events are not supported
• Customer segments using customer_account_status — this filter is exclusive to legacy accounts and will not function after migration
• Multipass — if you use Multipass to integrate your own identity provider or SSO system, this is not supported on the new Customer Accounts. You will need to connect your identity provider through the new framework instead
• Custom sign-in modals or registration flows — if your theme has a custom login experience outside the default account templates (such as a modal overlay), you will need to remove those customisations before upgrading

Things That DO Transfer

• All existing customer data — order history, addresses, saved information, and account details all carry over intact
• Customer login access — existing customers do not need to create new accounts. They simply use the new passwordless login method instead of their old password

Who Is Most Affected?

Not every store faces the same level of complexity in this migration. Here is a quick breakdown:

• Low complexity — Standard Shopify stores with minimal account customisation. The migration involves enabling new customer accounts in Settings, updating any customer-facing communications, and testing the new login flow. This can typically be done in a day.
• Medium complexity — Stores with loyalty programme integrations, subscription app workflows, or custom branding on account pages. These require checking whether third-party apps support the new Customer Accounts framework and rebuilding certain customisations as app blocks.
• High complexity — Stores with custom Liquid account templates, headless setups using Storefront API customer mutations, Multipass or SSO integrations, or heavily modified customer dashboards. These require a structured migration plan, developer involvement, and thorough testing before go-live.

If you fall into the high complexity category, starting now is critical. The sunset date will be announced without much warning, and a rushed migration on a complex store is a recipe for disruption.

Step-by-Step: How to Migrate to New Customer Accounts

Here is the recommended migration process based on Shopify's official guidance:

Step 1 — Audit your current setup Go to Shopify Admin → Online Store → Themes → Edit Code → Templates → Customers. Review every file in that folder and note any customisations. Also check Settings → Checkout for any workflow automations tied to customer account status.

Step 2 — Check your apps Review every app that interacts with customer accounts — loyalty programmes, subscription tools, wishlist apps, review platforms, and any custom dashboard integrations. Confirm they support the new Customer Accounts framework. If an app still relies on legacy Liquid templates, it will not work after migration.

Step 3 — Duplicate your checkout configuration From Settings → Checkout, duplicate your existing configuration. This gives you a safe environment to configure and test the new account experience before publishing it live to customers.

Step 4 — Configure new customer accounts Enable the new Customer Accounts system in Settings → Customer Accounts. Add app blocks for the integrations you need — loyalty, subscriptions, returns, and so on — using the visual editor.

Step 5 — Test thoroughly Test the full customer journey: email sign-in, one-time passcode receipt, account page navigation, order history, returns, store credit, and any app-based features. Test on both desktop and mobile.

Step 6 — Communicate with your customers Prepare an email to your customer base explaining the change. Keep it simple — let them know the login experience has been updated, that their account and order history are fully intact, and that they will now sign in using a verification code sent to their email. Most customers adapt quickly once they understand what to expect.

Step 7 — Monitor post-launch Watch your customer support channels for the first two to four weeks after launch. Most questions will be about the new login method. Having a brief FAQ ready saves significant support time.

Key Dates to Know

Frequently Asked Questions

Will my customers lose their accounts or order history? No. All existing customer data carries over to the new system. Customers simply use the new login method instead of a password.

Can I revert after switching? Shopify allows a 30-day revert window after you upgrade. After that, the change is permanent. This makes it important to test thoroughly during that window.

Does my store need to migrate immediately? Not immediately, but proactively. Shopify has confirmed the sunset date is coming later in 2026. Waiting until the deadline announcement leaves you very little time, especially if your store has complex customisations.

What replaces Storefront API customer mutations? The Customer Account API is Shopify's replacement for stores using headless commerce or custom storefronts that relied on customerCreate, customerUpdate, and related mutations.

What if a customer finds the OTP login inconvenient? Some third-party solutions allow you to retain email-password login as an option alongside the new OTP method. However, Shopify's native system is passwordless by design, and most customers adapt quickly.

The Bottom Line

Shopify's deprecation of legacy customer accounts is one of the most significant platform changes of 2026. It is not optional, and the sunset date will arrive whether you are ready or not.

The good news is that the new system is meaningfully better — more secure, easier to manage, and packed with built-in features that previously required custom development. The migration is straightforward for most stores, and for those with complex setups, starting now gives you the time to do it properly.

Do not wait for the sunset announcement. Audit your current setup today, build your migration plan, and move on your own timeline — not Shopify's forced deadline.

Need help migrating your Shopify store to the new Customer Accounts? Our team at SellioApps specialises in Shopify development and store migrations. Get in touch for a free consultation.