MFA Error External User Accessing SharePoint


An external user who has been invited to access an internal SharePoint site is coming across an MFA error trying to access the site - any ideas why and how to resolve? The user isn't receiving a call but does receive the verification code but after inputting still gets this message.


External sharing is enabled and the users phone number is correct.


Error Code: 500121



1 Reply
Not much we can advice you you can do is review that the MFA policies applied to the user are the right ones....if that's the case, open a support ticket