We’re excited to announce that Unified API Accounts now live for all merchants using BigCommerce B2B Edition!

This release introduces the B2B Edition OAuth scope into the BigCommerce store-level and app-level API accounts. Merchants and partners can now use a single unified API token for both Platform Core and B2B Edition APIs, eliminating the need for separate tokens and simplifying integrations.

Why is this Important to you?

For Merchants:

  • True Platform Integration: One single API account for both B2C and B2B reduces complexity, minimizes errors, and creates a seamless experience when connecting with third-party platforms.

  • Operational Simplicity: Development teams can get started faster, test and deploy with less effort, and spend more time building for growth instead of managing setup.

For Partners:

  • Accelerated Innovation: With the B2B Edition scope now available in the Developer Portal, partners can more easily build SaaS products that serve both B2C and B2B customers within the BigCommerce ecosystem.

  • Faster Client Time-to-Value: A single token for both Core and B2B APIs streamlines integration work. Partners can deliver solutions that are quicker to launch, easier to maintain, and built to scale as client needs evolve.

What is Included in this release?

Previously, the B2B Edition REST Management API required its own token created in the B2B Control Panel, forcing developers to manage two separate API accounts.

 With this release:

  • Merchants can create a Store-level API account(Settings › Store-level API accounts) with the B2B Edition scope and permissions, using a single token to access all endpoints  inclusive of B2B Edition.

  • Partners can add the B2B Edition OAuth scope to app-level credentials in the Developer Portal, enabling apps that seamlessly support both B2C and B2B businesses.

Availability

  • General Availability: September 30, 2025

  • Action Needed: If you are currently in development, we recommend moving to the unified Store-level API accounts in the BigCommerce Control Panel. 

    • Starting December 31, 2025, you’ll no longer be able to create B2B Edition-specific API accounts in the B2B Edition Control Panel. 

    • Existing accounts will keep working, but new permission enhancements will only be available through Store-level API accounts. 

    • This rollout will not break your existing customizations or integrations.

To get started, go to Settings › Store-level API accounts in your BigCommerce control panel and click Create API Account.

Best Practices

  • For Partners: Begin updating automation scripts, integration workflows, and documentation to take advantage of the app-level B2B Edition OAuth scope in your Developer Portal.

  • For Merchants: Regularly review your API accounts in the B2B Control Panel and remove any unused tokens to improve security.

Additional Resources