Microsoft

Go to Azure App Registration and select “New registration”.

Provide a name for your application to proceed with the registration.

Set Who can use this application or access this API? to Accounts in any organizational directory (Any Azure AD directory - Multitenant).

Set the Web redirect URI to:

<Cal.com URL>/api/integrations/office365calendar/callback

Replace <Cal.com URL> with the URL where your application runs.

Use the Application (client) ID as the value for MS_GRAPH_CLIENT_ID in your .env file.

Click on Certificates & secrets, create a new client secret, and use the generated value as the MS_GRAPH_CLIENT_SECRET in your .env file.