When you are troubleshooting the Calendar Connector for Lotus Notes, it is very difficult to find problems encountered when Notes users are trying to find Free/Busy information for Exchange Server recipients. Most of the processes in Notes are handled by server tasks. This article describes a procedure to enable detailed logging on the Notes server console to assist with troubleshooting Notes to Exchange Server Free/Busy transactions.

1.	Stop the Notes server.
2.	Find and modify the Notes.ini file for the Notes server. By default, it will be the Winnt directory.
3.	Add the following line to the very end of the Notes.ini file: debug_sched_all=1
4.	Save the Notes.ini file.
5.	Restart the Notes server.

After you restart the Notes server, all activity by the Calendar Connector (a Lotus Notes Server task) and, subsequently, the Exchange Calendar Connector (an Exchange Server task) will be sent to the Notes server console. Note that the logging activity will reduce the overall performance of the Notes server. The debug_sched_all parameter should not be set to 1 unless you need to troubleshoot the Exchange Calendar Connector.

If you do not want to restart the Notes server, type Set conf debug_sched_all=1 in the Notes server console, and then perform the test queries. This procedure generates lots of entries in Log.nsf.

We recommend that you disable the debug process after you are finished troubleshooting. To disable the debug process, type Set conf debug_sched_all=0 in the Notes server console. The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.