Hi Ashutosh,
I have gone thru the SAP Note 1463160
As per the note the solution given is
Solution
Re-create the Broadcaster setting with an user that exists in the system.
To avoid this issue to happen, it is recommended to create Broadcaster settings with a generic user that will never be deleted from the system.
I would like to know what is "create Broadcaster settings with a generic user"
Regards,
Anil Shenoy