On November 15th 2023 i held a webinar on how to consume Microsoft Graph API with OutSystems. The webinar covered on how to register an application with Microsoft Entra, retrieve an access token using client credentials flow and consume a Graph resource (Mail.Send).
On December 13th 2023 i held the second part where i showcased how to consume graph api with user permissions using an Authorizaton code flow.
This sample is the app i used to show the technical implementation.