Solved
Hi mohitenw,
I think that the parameter was introduced in windchill REST Services 1.6.... (https://support.ptc.com/help/windchill_rest_services/r1.6/en/index.html#page/windchill_rest_services%2Fwccg_restapis_latest_version_search.html%23)
Perhaps you have a previous version installed?
Anyway, there is a workaround in https://www.ptc.com/en/support/article/CS334913
Regards

