Flagship Launches New Shopify App 'Mypage Blocks' for Enhanced Customer Account Pages

Flagship Co., Ltd. (headquartered in Tokyo; hereinafter "the company"), which supports EC site development and develops Shopify apps, has launched 'Mypage Blocks,' a Shopify app that allows merchants to optimize the 'New Customer Accounts' customer page for the Japanese market without code editing.

Anticipating Shopify's recommended migration to 'New Customer Accounts,' this all-in-one app for Japanese market operations enables merchants to replicate and extend Japan-specific My Page features previously implemented via Liquid templates—now within the new account system—and also supports Shopify Plus-exclusive checkout extensions. By consolidating multiple functions into a single app, it enhances operational efficiency for My Page management.

Shopify App Store

Supported Language: Japanese

Addressing Japanese Market Needs for My Page Expansion with New Customer Accounts

Shopify is currently promoting migration to the more secure and performant 'New Customer Accounts,' with the complete deprecation of the legacy 'Legacy Customer Accounts' scheduled for 2026.

Previously, with Legacy Accounts, merchants could freely customize member pages by editing Liquid templates. However, in the new account system, direct code editing is prohibited, and customization is only possible via apps (UI extensions).

For Japanese e-commerce operators, this poses a challenge: how to reproduce essential features such as adding profile fields (e.g., birthday, gender), katakana input (furigana), and kana management for shipping addresses.

'Mypage Blocks' supports flexible implementation of these Japan-specific My Page functions within the New Customer Accounts environment.

Three Key Features of 'Mypage Blocks'

【Feature 1】All-in-One App for Japanese My Page Requirements

Without needing multiple apps, merchants can configure essential Japan-specific e-commerce features as modular blocks within a single app.

Flexible Addition and Editing of Profile Fields

Merchants can add custom profile fields—such as birthday, gender, or department name—as blocks on the My Page. Customers can edit these directly. Pre-set fields (e.g., furigana, birthday, gender) are also provided.

Furigana Management per Shipping Address

Furigana can be saved for each shipping address. For customers with multiple delivery locations (e.g., home, workplace, gift recipients), this ensures accurate kana printing on shipping labels.

Furigana Input Support

When customers enter furigana in hiragana, the system automatically converts it to katakana. Half-width kana inputs are also standardized to full-width katakana, minimizing data inconsistencies and improving accuracy in label printing and customer searches.

Auto Address Completion from Postal Code (Shopify Plus Exclusive - Checkout)

For Shopify Plus stores, the app replaces the default checkout with a system that references Japan Post's official address database. Entering a postal code automatically fills in the prefecture, city, and town names—reducing customer input time and errors, and helping prevent cart abandonment.

【Feature 2】Integration with Shopify Flow Triggered by Customer Actions on My Page

Previously, with Liquid-based My Pages, it was impossible to directly trigger Shopify Flow automations based on real-time customer actions such as editing and saving profile fields.

With 'Mypage Blocks,' a dedicated Shopify Flow trigger—'Customer Profile Updated'—is activated whenever a customer edits profile fields or notification settings on their My Page. Detailed data—including which field was updated and the new value—can be passed to Flow, enabling no-code automation such as:

- Automatically tagging customers as 'eligible for birthday coupon' when a birth month is registered

- Automatically adding customers to a Klaviyo segment when furigana is entered

- Automatically applying B2B pricing when a department name is registered

All collected data is stored in standard Shopify metafields, enabling seamless integration with Klaviyo, Shopify Flow, and various CRM tools.

【Feature 3】All-in-One Design Eliminates Need for Multiple App Subscriptions

Previously, merchants needed separate Shopify apps for features like furigana collection, address auto-completion (Shopify Plus only), membership QR codes, announcement banners, and invoice-compliant receipt issuance. By bundling these functions, 'Mypage Blocks' reduces both monthly costs and management overhead.

Main Feature Categories

- Profile & Account Management

Custom metafield editing (birthday, gender, etc.), furigana input, profile completion promotion banners

- Address Book Expansion

Kana management per shipping address, Japanese prefecture display

- Notification & Marketing Settings

Category-based newsletter subscription settings

- Order Management

Order history filtering and search, invoice-compliant receipt download

- Content

Add custom pages (e.g., FAQ), announcement banners

- Loyalty

Generate membership QR codes (compatible with in-store scanning)

- Integration & Automation

Shopify Flow integration (automation triggered by My Page actions)

- Checkout Extension (Shopify Plus Only)

Postal code to address auto-completion, automatic kana input for checkout recipient names

Pricing Plan

Free Plan ($0/month)

All core features at launch are available free of charge. This offers a significantly lower-cost alternative to subscribing to multiple paid apps for My Page enhancement.

※ Note: Future revisions to functionality and availability may lead to partial monetization or the introduction of paid plans. Any changes to the pricing structure will be announced in advance.

Future Outlook: Taking Japan's 'My Page' Concept Global

While English-speaking markets refer to this area as the 'Account Page' (settings screen), in Japanese e-commerce, the 'My Page' is a special space for deepening customer-brand relationships. Mypage Blocks aims to share the value of Japan's My Page operations with Shopify merchants worldwide through this application,