Client credentials grant

Diagram flow
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Kofax Import Connector sends the parameters (client_id, client_secret, grant_type=client_credentials, scope=User.Read%20Mail.ReadWrite%20Mail.ReadWrite.Shared%20offline_access%20openid%20profile) to Microsoft Azure Active Directory using the end point URL.
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Once the authorization is successful, Microsoft Azure Active Directory sends back the OAuth 2.0 access token, refresh token for accessing the user mailbox.
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Kofax Import Connector then send the user’s email address, mailbox folder to poll and access token for polling the messages.