Busy Apps Help

FAQ - How do I migrate from an old computer to a new computer?

BusyCal or BusyContacts can be installed on up to 5 computers that you own, using the same registration code.
FAQ - Manage Plugins button not showing in Apple Mail preferences

In order to enable Mail Activity within BusyContacts, you need to install the BusyContacts Mail Plugin and enable it under Apple Mail. The Manage Plugins button may not appear for some users.