AX2012 Client access log

There is option to keep track of user activities in AX2012. AX2012 will flush all details about the forms that are opened or closed to the table SysClientAccessLog.

Details that can be found in this table:  what part of the form users are in, what events are triggered in the form, at what time, computer name, duration in milliseconds.

You can find the full post on the blog of the AX performance team.