How to create a user-defined event error message (Enterprise Manager)

To create a user-defined event error message

1. Expand a server group.
   
   
2. Right-click a server, point to All Tasks, and then click Manage SQL Server Messages.
   
   
3. Click the Messages tab, and then click New.
   
   
4. In the Severity list, click the severity level.
   
   
5. In the Message text box, enter the new event message.

   The maximum number of characters is 255.

6. Select the Always write to Windows eventlog check box to write the event message to the Microsoft® Windows® application log.