Ever try reassigning an Activity like a task or appointment and get an error stating "The logged-on user does not have the appropriate security permissions to view these records or perform the specific action"? You're sure that you have the appropriate "Append" and "Append To" permissions set up on the User entity and the Activity entity you want to re-assign, but you still receive the following error:
Well, since Activities can be assigned to Queues, you’ll need to make sure that one of your user roles has the read permission on the Queue record.
Change the above row to look like the below row.
I hope this "gotcha" blog entry helps!
-Phil Edry