When on the portal go to the configuration tab on the drop-down menu and select serving units.
Select which tablet you wish to add the serving unit to, on the top right-hand side of the screen.
Then click the edit pen either under the cold serve over or hot holding depending on the unit type.
Enter the unit name in the left and the right columns .
Select which tablets you wish for it to appear on again and save.
Once saved click the blue clock icon beside the unit just added to add the times you wish for it to alert at.
Tick off the times and save.
When the tablet communicates next to the portal the tablet will update.