Shopify Discontinued Legacy Customer Accounts: Why You Should Prepare for the Transition to New Customer Accounts Now
1. What happened?
On February 26, 2026, Shopify announced the deprecation of Legacy Customer Accounts via its official Developer Changelog. These accounts will no longer be available for new stores and existing stores not currently using them, and Shopify will cease feature updates and technical support for this older version. shopify The final sunset date will be announced separately in 2026, and Shopify strongly recommends that merchants upgrade their Customer Accounts before the deadline. shopify
This change is not just a simple UI replacement. It's an extension of Shopify's broader direction, moving from "Liquid-based customization to an Extension-based platform," a path it has been pursuing since Checkout Extensibility.
https://shopify.dev/changelog/legacy-customer-accounts-are-deprecated
2. What's the difference between Legacy vs. New Customer Accounts?
Legacy Customer Accounts traditionally used email and password-based login. They offered flexible customization per brand, as Liquid templates could be directly modified. In contrast, New Customer Accounts prioritize passwordless login Shopify Help Center by sending a 6-digit verification code to the customer's email and aim for expansion based on Customer Account UI Extensions rather than Liquid.
The biggest philosophical differences are:
- Legacy: Theme-dependent pages freely modifiable by merchants.
- New: A structure where features are added via Extensions on top of standard pages managed by Shopify.
This structure follows the same mental model as the framework Shopify already validated with Checkout Extensibility. Just as custom UIs could be injected into specific locations in Checkout, the same approach can now be used to build brand experiences within Customer Accounts.
3. At-a-glance Comparison Table
| Item | Legacy Customer Account | New Customer Account |
|---|---|---|
| Login Method | Email + Password | Email + 6-digit OTP (Passwordless) |
| Shop App Login | ❌ Not supported | ✅ Sign in with Shop supported |
| Liquid Customization | ✅ Available | ❌ Not available |
| Customer Account UI Extensions | ❌ Not available | ✅ Supported (Order Status, Profile, Order Index, Full-page) |
| B2B Functions | ❌ Not supported | ✅ Supported (Shopify Plus) |
| Self-serve Returns | ❌ Not natively supported | ✅ Natively supported |
| Saved Payment Methods | Limited | ✅ Supported |
| Multipass | ✅ Supported | ❌ Not supported |
| Checkout Extensibility Integration | Partial | ✅ Fully integrated |
| Mobile Optimization | Limited | ✅ Mobile-first design |
| Session Duration | Short | Up to 365 days |
| Future Shopify Updates | ❌ Discontinued | ✅ Ongoing |
| App Ecosystem Compatibility | Many existing apps | 800+ apps converted, continuously expanding |
4. What's possible (✅) and what's not (❌)
✅ What works "better" with New Customer Accounts
- Passwordless Login: Reduces cart abandonment due to forgotten passwords.
- Self-serve Returns: Customers initiate and manage returns themselves, reducing customer service tickets.
- B2B Company Account Switching: Toggle between personal and company contexts (Shopify Plus).
- Seamless Checkout Integration: One-click account access from order confirmation emails.
- UI Extension-based Expansion: Add Loyalty, Subscription, and Review apps with a near drag-and-drop experience.
- 365-day Session Persistence: Improves the experience for returning customers.
❌ What's "not yet possible" with New Customer Accounts
- Liquid-based Template Customization: Direct modification of account pages via theme files is not possible.
- Multipass SSO: Discontinuation of existing integration methods with external authentication systems (requires alternatives).
- Some Legacy Apps: Older apps built on Liquid are not compatible.
- Password Login Option: Only OTP is provided, which might be a friction point for some elderly customers or those with limited email access.
- Pixels/Tracking on Account Pages: Some analytics scripts may not function natively.
- Domain Separation for Multi-Markets (Non-B2B): New Customer Accounts operate on a single domain.
5. Changes from the Developer/Agency Perspective
For Theme Developers
Legacy Customer Account Liquid files should no longer be included in themes. If a store using Legacy upgrades to a theme without Legacy files, it will automatically switch to the latest version of Customer Accounts. shopify Shopify also offers a new shopify-account web component that automatically redirects to the latest version.
For App Developers
You need to develop an app that extends Customer Accounts using Shopify Extensions, without customizing Liquid templates. Apps that rely on Legacy Customer Account Liquid pages will not work for merchants who have upgraded to the latest version. shopify More than 800 apps have already transitioned to Customer Account UI Extensions, which also presents an opportunity to expose your app to the new account system used by over 70% of Shopify merchants. shopify
For Custom Storefront Developers
To build the most secure customer experience, you should use the Customer Account API as the source of customer-scoped data and authenticated customer actions. Custom storefronts or apps currently using customer-scoped mutations from the Storefront API are advised to switch to the Customer Account API as quickly as possible. shopify
6. Concentrix's Proposed Migration Checklist
- Current State Diagnosis: Check the current version using the
customerAccountsVersionfield of the GraphQL Admin API. - App Dependency Audit: Identify apps among Loyalty, Subscription, Review, B2B, and Form apps that are dependent on Legacy Liquid and verify UI Extension compatibility with the vendor.
- Multipass/SSO Response Design: If using Multipass, design an alternative authentication strategy (e.g., Customer Account API + external IdP integration).
- Pixel·Analytics Reconfiguration: Migrate tracking scripts embedded in account pages to the Web Pixels API.
- Shopify Flow·Automation Review: Reconfirm triggers for account event-based workflows (e.g., signup, login).
- Communication Plan: Inform existing customers in advance that they will use a 6-digit code instead of a password for their next login.
- Theme Cleanup: Remove Legacy Customer Account Liquid files from the theme and switch to the
shopify-accountweb component. - Phased Rollout & Testing: Verify the entire flow of login → order lookup → return → repurchase in a Draft environment.
7. Conclusion — "Choice" is "A Matter of Time"
With this Deprecation announcement, Shopify has made its direction clear. Legacy Customer Accounts will soon completely disappear, and all brands must transition to the Extension paradigm based on New Customer Accounts. Just as with Checkout Extensibility, while there may be initial regrets about what "can't be done," the entire Shopify ecosystem quickly realigns in that direction.
The Concentrix Shopify group provides end-to-end support for Legacy → New migration, including planning, app/data compatibility diagnosis, UI Extension development, theme refactoring, and post-launch stabilization. Starting preparations before the Sunset Date is the safest choice.