My Size Integration (Hellostore Accounts)

Hellostore Accounts lets shoppers save, edit, and delete their own sizes in new customer accounts. Free includes profile management. Pro can automatically select a matching available saved size on supported product pages.

• Hellostore Accounts 1.0 merchant guide (Japanese)
• Two-minute introduction with Japanese audio and captions

What it does

Free: shopper-managed profile

Add “My Size” to the Profile page in new customer accounts. Shoppers can save and edit the three fields for tops, bottoms, and shoes, or delete a value by clearing its field.

Stores that also use height or style preference can optionally add “My Size — full page” to the account and its menu. The detail page manages five fields for the same shopper: tops, bottoms, shoes, height, and style preference.

Pro: automatic selection on product pages

With Pro, enable and save “My Size auto-select” under App embeds in the theme editor. When a logged-in shopper has a saved size, the app automatically selects a matching available product variant on supported products.

• A size the shopper selects manually remains in place while they continue viewing the same product in the same tab.
• When a URL explicitly identifies another variant, that choice is respected.
• The app does not change the selection for sold-out matches, products whose size option cannot be identified, unsupported themes, or products with more than 250 variants. The shopper selects a size manually instead.

Setup

1. From Hellostore Accounts Home, open “Set up customer accounts.” If that route is unavailable, go to Shopify admin → Settings → Customer accounts → Customize.
2. Add “My Size” to the Profile page and save.
3. Only when you use height or style preference, add “My Size — full page” to the account and its menu, then save.
4. For Pro automatic selection, enable “My Size auto-select” under App embeds for the theme you use, then save.

See the merchant guide for pricing, shopper actions, setup after reinstalling, and troubleshooting.

Add the size-registration prompt to product pages (optional)

In the theme editor, open a product page and choose Product information → Add block → Apps → My Size registration. Move it below the size picker or another position you choose, then save. The link is available on Free. Add, remove, or hide the block to control its display.

Under “Link style,” choose “Text link (no border),” “Square button,” or “Rounded button.” The default is a small text link. Save after changing the style.

If you use the legacy prompt, turn off “Automatically position the size prompt (legacy)” under App embeds → My Size auto-select and save. If you leave it on, removing the individual block restores the legacy prompt.

This block links to the Shopify profile. Signed-out shoppers first reach Shopify sign-in. Add My Size to the profile using the setup above. The block requires an app-block-compatible product template and does not freely display saved size values inside the theme. Pro automatic selection separately requires the app embed to remain enabled.

Size-label mapping

When a product uses “38” but the saved value is “S,” create a mapping in Hellostore Accounts settings. To use a different mapping for one theme, enter lines such as 38=S in the theme-specific field for My Size auto-select.

If the theme-specific field contains at least one valid mapping, that entire table replaces the app-level table. The two tables are not merged. Clear and save the theme-specific field to return to the app-level mapping.

Responsibilities of Hellostore Theme, Accounts, and AI Staff

• Hellostore Accounts — manages shopper-owned sizes in new customer accounts and, with Pro, automatically selects product variants through its app embed.
• Hellostore Theme — provides the product page and the place where the app embed runs. It does not currently display customer-account sizes freely in arbitrary theme locations.
• Hellostore AI Staff — can use a size confirmed in chat to highlight a size-guide row. Hellostore Accounts profiles are not currently shared with Hellostore AI Staff.

Size-guide row highlighting with Hellostore AI Staff

Configure the existing Hellostore AI Staff feature separately from Customer Account automatic selection.

• Size highlighting with Hellostore AI Staff — when a shopper checks a size in Hellostore AI Staff and agrees to save it, the row for the same size can be highlighted in a size table on the product page. The size selection on the product page (the variant to buy) does not change automatically. Turn on “Highlight the AI-suggested size in the size table” under Theme settings → Product cards. Highlighting works only when the theme includes the “Size × Inventory matrix” section and that section’s “Highlight the size suggested in chat” is also on. It has no effect in a theme where “Size × Inventory matrix” does not appear under Add section. Enable Hellostore AI Staff through the theme editor’s app embed.

When you use only Chat row highlighting, shoppers still select their size themselves on the product page.