You have to use a calendar that is in the personal folders area of MS Outlook for calendar integration. Furthermore, the personal folders area must be assigned to the mail profile as a service. You can use an existing personal folders area or create a new one.
If you have created several mail profiles, log on using the profile in which you want to use the calendar.
As an alternative to procedure 1, you can proceed as follows. In this case, however, you cannot choose the name of the area yourself. Furthermore, the standard files (inbox, outbox, and so on), which you cannot delete, are automatically displayed to you in this area.
If you want to maintain the same calendar in several profiles, add the service to each of these profiles.