To connect the Office 365 Calendar Connector, it requires a Microsoft Azure Admin to register an Enterprise application and create a service account with a “User” role. As an Admin, please follow the below steps to register an azure app for the 0365 Connector, this would ensure that a service account with a user role can be used to authorize access to participants calendar events. Note: for information on limiting the scope of the application, see the documentation here.
MSAL_CLIENT_ID=
MSAL_TENANT_ID=
MSAL_CLIENT_SECRET=
2.Navigate to: https://portal.azure.com Azure AD -> App Registrations