split of doc into portal version

Author: asudbring

articles/active-directory/authentication/howto-mfa-mfasettings.md

@@ -401,6 +401,8 @@ The feature reduces the number of authentications on web apps, which normally pr
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 >If your users select **keep me signed in** on AD FS and also mark their device as trusted for Multi-Factor Authentication, the user isn't automatically verified after the **remember multi-factor authentication** number of days expires. Azure AD requests a fresh two-step verification, but AD FS returns a token with the original Multi-Factor Authentication claim and date, rather than performing two-step verification again. **This reaction sets off a verification loop between Azure AD and AD FS.**
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+>The **remember Multi-Factor Authentication** feature is not compatible with B2B users and will not be visible for B2B users when signing into the invited tenants.
+>
 
 ### Enable remember Multi-Factor Authentication