I get the following Application error message in event viewer on the BES server when I create a calendar item on my Blackberry phone, a 7520 it never shows up in Outlook calendar on my computer desktop.

Source: BlackBerry Messaging A
Category: None
Event ID: 20216
Description: synchronized failed() failed ERR_FAIL, Tag=11895

Any ideas?

I am having the same problem. Did you ever get it resolved?

I have the same problem for several users. We are primarily utilizing Sprint BB 7250 devices. Any help would be appreciated.