# Partners overview

Build integrations that connect your platform with Airwallex Business Accounts using OAuth 2.0

The Airwallex Ecosystem APIs enable third-party platforms to integrate with Airwallex Business Accounts, delivering enhanced value to mutual customers. Partner Connections use OAuth 2.0 to securely authorize access, allowing you to call Airwallex APIs on behalf of connected accounts.

### Implement OAuth authorization

Authorize existing Airwallex customers or onboard new customers with combined sign-up and authorization flows.

- [Authorize existing customers](https://www.airwallex.com/docs/developer-tools/partner-connections/implement-your-authorization-flow/existing-customers.md)\
  Implement OAuth for users who already have Airwallex Business Accounts

- [Authorize new customers](https://www.airwallex.com/docs/developer-tools/partner-connections/implement-your-authorization-flow/new-airwallex-customers.md)\
  Combine Airwallex account creation with OAuth authorization for new users

### Understand key concepts

Learn about OAuth permissions, token management, and connection lifecycle.

- [OAuth permissions and user roles](https://www.airwallex.com/docs/developer-tools/partner-connections/oauth-permissions.md)\
  Understand which user roles can authorize integrations and how role changes affect connections

- [Troubleshoot OAuth errors](https://www.airwallex.com/docs/developer-tools/partner-connections/troubleshooting-oauth-errors.md)\
  Diagnose and resolve authentication and token refresh errors

### Test your integration

Use the sandbox environment to test OAuth flows and API calls before going live.

- [Sandbox environment](https://www.airwallex.com/docs/developer-tools/sandbox-environment.md)\
  Test OAuth authorization and API integration in a safe environment

- [Simulate payouts](https://www.airwallex.com/docs/developer-tools/sandbox-environment/payouts.md)\
  Use simulation APIs to test payouts