Hi Anji,
By the way are you using interaction center or web UI for creating the service requests?
You mean header data in the sense BTAdminH data or some other related entity data?
Did you check in IncidentHeaderEF view do_prepare_output method or some other standard methods have been redefined and added custom logic to set data in BTAdminH or any header context node?
Best Regards,
Dharmakasi.