Changelog· Page 5

The carts API rejects a quantity larger than the available stock with a 409 instead of quietly accepting it. Overselling is caught the moment it is requested, rather than surfacing as a failed checkout or an order you cannot fulfil.

Also shipped

• Product rows in the list link straight to the edit page

Public API expansion

Coupons, pickup locations, promotions, reviews, shipping and tax rates, subscription plans and post comments all gain public API endpoints. Whole areas of the store that previously lived only in the admin are now scriptable and readable by a headless storefront.

Variant details

Variants take an optional barcode and a description of their own, which is useful when a size or finish needs its own copy or scans at a warehouse. Variant options and attributes can also be written through the public API and are typed in the Commerce SDK.

Also shipped

• The bundle editor toggles explicitly between a percentage discount and an exact price
• Legal entries in compliance settings can be stored per language

Connected apps and MCP

A new Connected apps section in settings shows everything hooked up to your store, and YNS now runs an OAuth MCP server that external AI clients can connect to. You pick which store to grant during the OAuth flow, and the assistant then works against that store's catalog, orders and settings.

Brands

Brands are managed in the admin, reachable from catalog navigation, and any product can be assigned to one. Multi-brand catalogs finally have a first-class field to filter and merchandise on.

Feedback session review

Feedback sessions now suggest an importance for each comment with AI, let you drag comments into the order you want them handled, and hold finished tasks at a review gate until you confirm them. Interrupted sessions can be redeployed and picked back up, with open tasks shown first.

Also shipped

• Bundle discounts can be expressed as an exact price rather than a percentage
• The launch-readiness panel steps out of the way while chat is open

Email template editor

Every email template opens in a redesigned editor with a live preview beside the form, so you see the message as the customer will. Pick a predefined body or supply your own HTML, and the template names, descriptions and editor UI follow the admin language.

Locale detection for migrated stores

Migrating a store into YNS now detects the language of the original site up front and tells the AI to write the initial copy in it. Merchants outside English-speaking markets stop landing on an English draft that has to be rewritten.

EU Omnibus 30-day lowest price

Product responses from the public API now carry the lowest price of the last 30 days — the figure EU law requires next to any advertised discount. Storefronts can render the Omnibus line directly from the API instead of tracking price history themselves.

Legal & Compliance settings

Compliance settings are now Legal & Compliance, and every legal page gets its own editor instead of sharing one form. Terms, privacy policy and withdrawal texts stay separate and are easier to keep current.

Ticket endpoints in the Commerce SDK

Ticket endpoints are now fully typed in the Commerce SDK. A custom storefront can list, issue and validate tickets with the same type safety as products, instead of hand-writing fetch calls against the API.

Checkout consents via the API

Checkout consents are managed through /api/v1/settings/checkout-consents. Add, edit or retire the consent checkboxes shown at checkout programmatically — handy when legal text is maintained outside YNS.

Also shipped

• Collections can be grouped through an optional group key, for storefronts that show collections in sections
• Attendee token links are view-only, so a forwarded ticket link can't be used to alter the booking

Localized transactional emails

Order confirmations, shipping notices and the rest of the transactional set now go out in the customer's language rather than the store default. Confirmations for event purchases are ticket-aware, listing what the buyer actually holds instead of a generic line item.

No-login ticket access

Buyers and attendees open their tickets straight from a link, with no account and no password. Fewer support requests before the event, and a faster door on the day.

Also shipped

• Feedback comments record their edit time and expose thread timestamps

Editing an event now works like editing a product: a bundle-style sidebar in the event form, guest settings collapsed into a single field, and event groups picked from ones that already exist instead of typed free-form. One set of habits covers the whole catalog, and event groups stay tidy.

Events with per-ticket attendees

Each ticket now carries its own attendee, and a storefront-ready events API exposes events and their tickets to any front end. The event form takes a rich body, and the guest line shown to buyers is yours to label or switch off.

Atomic cart quantity updates

The carts endpoint accepts a new set mode that writes an exact quantity instead of adding to whatever is already there. Retries and concurrent updates from a custom storefront can no longer double a line.

Bulk tax editing for products

Select any number of products and apply a tax rate or a Stripe tax code in one action. Correcting tax treatment across a catalog no longer means opening products one at a time.

Also shipped

• File attachments in the store prompt — attach files when describing the store you want, so the AI works from your material instead of a text description alone
• Newsletter plan limits — subscriber counts and monthly sends are enforced against your plan, with the limit surfaced before you hit it
• Feedback sessions let you discard or override unresolved comments, and email the comment owner on submission and finalization
• Category and collection editors realigned with the bundle form; the bundle list and editor are fully localized
• Clearer attendees section at checkout for event purchases

Allegro integration

Connect an Allegro seller account over OAuth, publish products as Allegro offers, keep stock in sync and import Allegro orders back into YNS. Polish merchants can now run the marketplace and their own store from a single catalog, with connection and publishing handled from the admin.

Product editing redesign

The product edit page has reworked tabs, a new header and a clearer integrations area, with every field that comes from a module gathered under its own Modules tab. Variant Label and Type merged into one control, so a variant is defined in one place instead of two.

Catalog CRUD in the public API

Collections, categories and blog categories now support create, update and delete through the public API, with matching mutation types in the Commerce SDK. Enough to build and maintain a full catalog structure from your own tooling.

Also shipped

• AI image generation through the YNS API — generation now runs through the YNS API and lands in the Studio Library, so every generated image is stored and reusable across the store
• Outbound emails in Messages — emails your store sends to customers show up in the Messages inbox next to incoming ones, so each conversation reads as one thread
• Managed Commerce paid features — subscribe to paid features per store, with the tier price shown in the Managed Commerce status card
• Rebuilt template catalog — a fresh set of store templates, and AI template selection now weighs the aesthetic you describe rather than just the industry
• Bundle editor redesigned to mirror the product form, plus status filter tabs on the bundle list
• Pasted images in AI Builder chat open in a fullscreen lightbox
• Preview deployments get a readable alias built from the store subdomain instead of a raw hash