MS Graph API configuration

[WiktoriaKościel]

Hello,
I was started working with MS Graph Api and i need help with configurate it.
I wanted use action " Send Email" But i see this error. 
Internal : Unexpected error A credential authentication has not been chosen in the Web API configuration.
Could somebody help me with it?
Best Regards
Wiktoria

[ewilson]

Hello @WiktoriaKościel,

So you're using the Microsoft Graph API - Outlook integration from the Digital Exchange, correct?​ Have you also downloaded the Microsoft Graph API - Authentication connector? You need to call the Authentication VBO first in order to retrieve a token from Microsoft. Then you pass that token into the Outlook integration in order to perform the various actions.

Cheers,
Eric