You can create a schedule to execute the workflow automatically.
From the navigation pane, go to Developer tools.
The Developer tools page appears.
Click the Workflows tile.
The Workflows page appears.
In the row for the workflow that you want to create a schedule for, click the action button , and then click Create Schedule.
If a dialog box appears, enter the required values, and then click OK.
The Add schedule dialog box appears.
Specify the schedule settings, and then click OK.