When calling the API from within Luminate, you actually use the parameter auth, not sso_auth_token. When working with authentication tokens, there are two types of tokens namely Auth Token and SSO Auth Token.The Auth token does not require the user to be logged-in in order to be used as it lets the Luminate System verify that Call B for Session 1 is valid after Call A for Session 1. Whereas SSO Auth Token is generated when the user is logged-in and before using it one may need to make a Single Sign-On login call. The Authentication Token page of the API documentation page has more information on Authentication Tokens.