How can an admin view the failed flow interview?

The option to view the failed flow interview through the Flow Error link in the email notification is correct because Salesforce automatically sends an email notification to the administrator when a flow fails to execute properly. This email includes a direct link that allows the admin to quickly access detailed information about the failure, such as the specific interviews that encountered issues, the error messages, and other context that can help diagnose the problem. This feature is designed to streamline the troubleshooting process, ensuring that admins can effectively manage and rectify flow issues without searching through various settings or logs.

In contrast, accessing the Flow Builder directly does not provide information about past executions or failures; it mainly allows for the creation or modification of flows. Checking the flow error settings in the admin panel also does not lead to specific instances of failed flows, but instead focuses on configuring general error handling for flows. Likewise, reviewing the user's activity log would give a broader overview of user actions within Salesforce, but it would not specifically highlight issues related to failed flow interviews. Therefore, the streamlined approach provided by the email notification is the most effective method for viewing failed flow interviews.