On Appogee HR you can create notifications based upon data on the user profile.
A notification can be set to remind a user that a probational review is due by undertaking the following steps:
1. Go to the Notifications tab (Appogee HR > REPORTING > Notifications)
2. Fill in the data on the form (as below). The 'Trigger' will be the 'Job Start Date' and the notification date will be '3 Months After'.