We are using a third party authentication provider to support our login process to O365 and SharePoint Online.
When signing into our 'ourdomain' tenant: With internal users e.g. email@example.com, users that are not yet signed in are redirected to a MS screen where they are asked for their email address, followed by a screen with “taking you to your organization’s sign-in page”.
With external users, such as mbalcarek_differentDomain.com#EXT#@ourDomain.onmicrosoft.com, they are not redirected to our organization’s signon page.
Is this something we can configure so that external users are treated the same as internal users in this respect?