> This page is for Developer.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.bigcommerce.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.bigcommerce.com/_mcp/server.

## B2B, API, Storefront

**1. Checkout & API Improvements**

* DEVDOCS-6341 | Checkout - Enhanced Checkout URL

Apps or AI agents can use the Checkout URL format to create a new cart, add products, and direct a shopper to your BigCommerce storefront’s checkout.

* [Mark order_taxes.tax_rate_id as deprecated, document sales_tax_id](/developer/api-reference/rest/admin/management/orders/order-taxes)

To support a wider range of use cases, the order_taxes.tax_rate_id (int) is now deprecated and will be removed in the near future. Please update to use the order_taxes.sales_tax_id (string) field.

**2. B2B Features & Theme Location**

* [B2B Features](/developer/api-reference/rest/b2b)

DEVDOCS-6241 - Content Refresh - "Address" (S2S)

* DEVDOCS-6245 - S2S Payments content refresh

* DEVDOCS-6250 - Content Refresh - "Users" (S2S)

* DEVDOCS-6253 - Content Refresh - "Orders" (Storefront)

* As part of our ongoing content refresh for B2B Edition developer documentation, we've fully refreshed the documentation. This includes:

New, thorough descriptive copy

* Request body examples with relevant fields

* Inclusion of previously-missing fields for all endpoints

* [Theme location](/developer/docs/b2b-edition/storefront/theme-elements)

DEVDOCS-6395 - Create article to host B2B Edition theme location information

Added missing theme file name to the B2B element found in /templates/pages/order-confirmation.html

⠀**3. Control Panel GraphQL Update**

* [DEVDOCS-6410 - Remove password connected mutations](/developer/api-reference/graphql/account/account-graphql)

To enhance security, we've removed the ability to create a control panel user account with password via GraphQL. Users can still be added to an account using the non-password linked mutation.

⠀**4. Billing and Channels**

* DEVDOCS-6442 - proration update for UB

We've adjusted the way cancellation is managed for unified billing so that cancellations post-trial and pre-billing cycle will be prorated instead of preventing cancellation.

* [DEVDOCS-6463 - add microsoft to channels docs with type marketing](/developer/api-reference/rest/admin/management/channels)

Updated channel docs to include the microsoft platform with type marketing