Identity verification history and login history are two areas that the administrator can review to understand potential root causes of multi-factor authentication issues. Identity verification history shows the methods and results of identity verification attempts for a user, such as email verification, SMS verification, or app verification. Login history shows the status, source, and location of login attempts for a user, as well as any login errors or challenges that occurred. These two areas can help the administrator identify if the user entered the correct verification code, if the user’s device or app is compatible with multi-factor authentication, or if there are any network or security issues that prevent successful verification. References: https://help.salesforce.com/s/articleView?id=sf.identity_verification_history.htm &type=5 https://help.salesforce.com/s/articleView?id=sf.monitoring_login_history.htm &type=5