A data page is used to retrieve data from an external system.

The requirement is to handle an error when it occurs and perform two actions: display a message to the user and send an email to the administrator. This can be done by configuring an error handling process that encapsulates both actions. Typically, this would involve configuring a flow or an activity that runs when an error occurs, and it would handle both displaying the error message to the user and sending the email. References: Pega Platform Help - Error Handling.