When you're on the communication tab of the MIM Workspace, and you add a Communication Task, and select Email, you have a choice between templates.
These templates are stored in sys_email_client_template table.
From there it looks and feels like normal notification configuration, with the Subject and Body using the same ${field_name} paradigm. The conditions on these (I believe) govern under what circumstances the template will be selectable from the choice list featured in the first screenshot.
Hope that helps: Delicately tap the Helpful/Correct Answer for the karma!
