Hi @bijo.varghese,
Pulse checks for changes in the following scenario:
- After Pulse executes the documentation
- By default every 30 sec (You can update this setting in Administration > Instance Settings)
- After the migration
The Author will depend on when Pulse looks for the changes:
- After the documentation finishes, if there is a change Pulse will set the Author as SYSTEM.
- During the change tracking, the author will be either username or if you are using CAM Security it will show AD/username (Pulse grabs the attribute }TM1_DefaultDisplayValue of the }clients dimension).
- After migration the Author will be MIGRATION
In your case, you are seeing Author is AD/TM1 Cognos Service Account, so I would assume that someone logged in with this user on the server and made a change.
In the case of Author is ???, this user is created when you login using CAM Security, TM1 shows ??? for around 30 sec, it might be longer and then display AD/username so I would assume that someone made a change very quickly before his/her name was updated by TM1.
More information about ??? in this post:
More information on the SYSTEM user in this post:
https://forum.cubewise.com/t/author-as-system-in-change-history/565/6
I hope this will help
Cheers,
Vincent