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6. After clicking on "Mobile and desktop applications" you will be asked to choose a "Redirect URI". This tells the app where it should go when it needs to authenticate a user. Choose the first option "https://login.microsoftonline.com/common/oauth2/nativeclient", and leave Untick the default options and enter “http://localhost” in the "Custom redirect URIs" at the default (blank)section. Click the "Configure" button.

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2. Go to the "System Configuration" form an on the "Email - Configuration Microsoft Graph REST API" tab paste the "Application (client) ID" value (noted down from the previous section step 13) into the "ClientID" setting contents and the "Directory (tenant) ID" value (also noted down from the previous section step 13) into the "TenantID" setting contents.Leave the RedirectURI blank - when blank the default for the authentication library is used.  If you had reason to change the Redirect URI for the App Registration in Azure, then enter the alternate Redirect URI here.

Save.

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2. Load the staff member via System Settings → Staff Configuration → Staff Maintenance - on the Main tab, select "Microsoft Graph" as the Email Provider, and enter the Email address and Display name Name - these will be the default used when sending emails.

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If you are going to be emailing from services or applications which cannot interact with the user, then you must check the NonInteractive setting on the Custom Fields tab, AND you must also provide the Office365 credentials on the Main tab as the Username and Password. 

The account in Office 365 / Azure NonInteractive accounts must have Multifactor Authentication disabled.STOP PRESS: The latest version of the plugin (non-release) allows multi-factor authentication, enquire on our helpdesk for details

You do not need to set these credentials if the NonInteractive field is left unchecked, and those accounts are able to use Multifactor Authentication. 

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