Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear Juan Serra,
Good day! Thank you for posting to Microsoft Community.
This forum is mainly focus on Microsoft 365 and Office in-built features.
Since your question is related to the utilization of an Enterprise Application to incorporate SSO in your Web Application, I sincerely recommend you post your concern to the specific channel mentioned in the following article: Microsoft Graph | Support. Members and engineers over there are proficient in the knowledge of these issues. We are sure that our experts from that team can address your query effectively and accurately.
Thanks for your understanding and cooperation! Hope you have a nice day!
Sincerely,
Ralph | Microsoft Community Moderator