Sometimes IDM generates 3 messages instead of 1 for an add, modify or delete event. It doesn't happen all the time. Why does this happen and is there a way to prevent it.
The most likely cause is that the objects have multiple values of DirXML-Associations for that driver. And the most likely cause of multiple association values is a bug in the migrate-from-eDir functionality in the ConsoleOne and iManager plugins that was fixed in the 3.5.1 time frame.