The following table explains client behavior while working against Exchange, SharePoint and Skype for Business tenants in Office 365.

However, explicit action is needed to use legacy authentication. Office 2016 clients support modern authentication by default, and no action is needed for the client to use these new flows. User running Office 2013 needs to have certain registry keys set. In order for these clients to use modern authentication features, the Windows Settings on already existing tenants will not be changed.Ģ) Client : O ffice 2013 clients support legacy authentication by default (Microsoft Online Sign-in Assistant or basic authentication, as applicable). Note: Default settings changed 1 augustus 2017 for NEW tenants.

Skype for Business Online - ON by default. Here is the per service state of modern authenticationĬ. Modern authentication features are gated by a two-part switch :ġ) Service : The Office 365 tenant/resource host (Exchange Online, SharePoint Online and Skype for Business Online) will need to be configured to accept a modern authentication connection.

This article explains how Office 2013 and Office 2016 clients use modern authentication features based on the authentication configuration on the Office 365 tenant (Exchange Online, SharePoint Online and Skype for Business Online).

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