What indicates that a flow user navigated backwards during an interview?

The indication that a flow user navigated backwards during an interview is observed through the presence of multiple "Entered flow" messages without corresponding "Exited" messages. This behavior demonstrates that the flow user has retraced their steps within the flow, effectively moving back to previously visited screens or steps without completing or exiting those steps.

In a well-structured flow interview, each time the flow proceeds to a new element or screen, an "Exited" message is typically logged to indicate that the user has completed that part of the flow. If a user navigates backward, it would result in new "Entered" messages being recorded for those previously accessed elements but would lack the "Exited" messages that would normally show that the user is progressing through the flow linearly.

Other options fail to provide a direct and systematic indication of backward navigation. Notifications about backward navigation, error logs, or email alerts may indicate issues or actions taken within the flow but do not offer straightforward evidence of backtracking like the entry and exit messages do. Thus, the first option accurately captures the specific logging behavior associated with navigating backwards in flow interviews.