From the Edit project page of a helpdesk project, select the SLA policies tab.
The New Workflow dialog opens.
Enter the name for the new policy and click the Create button.
A new SLA policy appears on the list in the project settings.
When done, click the Save button in the upper-right corner of the editor.
The changes you made in the script are saved.
Click the Status toggle for the SLA policy that you've just edited and set its status to Active.