A pipeline job can be restarted by clicking the Restart menu item on the Actions Menu (three vertical dots) in a Pipeline job widget.
Hevo stores the position of each Pipeline Job at its end. On every consecutive run, the job looks for data beyond the previously stored position. Once a job is restarted Hevo clears the position of the job on its end and the job then fetches the data from the Source since the beginning irrespective of the last recorded position.
Please note that all Sources do not support Restarting a Pipeline Job. For such sources, the Restart button won't be visible.