The following diagram describes the workflow of a custom action for a web services data actions integration that uses the User Defined (OAuth) credential type. For more information, see Credential types and How to use the User Defined (OAuth) credential type. 

1. The integration executes the authentication action with configured credential information.
2. The authentication action calls the authentication endpoint and receives a response.
3. The custom action references the authentication response fields through authResponse.<field name>.
4. The integration executes the custom action with resolved authResponse variables. 

For more information about the integration, see About the web services data actions integration.