Authorization flow (or Auth flow) is a flow that exchanges authorization and authentication between parties (client application, resource owner and authorization server) to grant a client application restricted access to protected resources on a resource server. 

Each OAuth flow offers a different process for approving access to a client app. Tiki Marketplace supports 3 authorization flows

• Authorization code flow
• Client credentials
• Refresh token

The final result of all auth flows is an access token. You can use this access token to access authorized resources in the Tiki Marketplace.