Datapolis Process System
Launch Action
Launching Site Workflow Action is the same as launching action for List Workflow (see Launch Action). It requires the same privileges and has the same approaches.
The only notable difference is in Manual Launch of action.
Launching action manually
Since there is no list on which workflow is running, you need to go to the list of all site workflows on current site. Go Settings -> Use Site Workflows and select action from your workflow's context menu.