It is the control that allows sending Mobile Notification in the flow.
Send Mobile Notification control icon at Flow Tools
How it looks like on the Canvas
This control has a Connection at the end of the control. Resource result of the Connection must be chosen as No Requirement.
Text: The text that appears on the screen is written here.
Notification Message: The content of the notification to be sent is written.
Users: Select the users to send as “UserID”.
When a document is created, a notification is sent to “UserPhone” according to this example.