Which action is commonly used to notify users in a flow?

The action commonly used to notify users in a flow is "Send Email." This action is specifically designed to create and dispatch email messages to users, providing an effective method for communication within ServiceNow workflows. By using "Send Email," flows can deliver notifications that include important information, updates, or alerts directly to users' email inboxes, ensuring that they receive timely and relevant communication.

This action is flexible, allowing for the customization of email content, recipients, subject lines, and various other parameters. It is a standard practice in many flows to use email notifications to keep users informed about the status of issues, requests, or changes that may affect them.

Other options mentioned may sound relevant, but they do not specify the widely recognized functionality within ServiceNow to directly send email notifications. Therefore, "Send Email" is the correct choice for effectively notifying users in a flow.