API Failed to add Webinar Panelist

[gopal2 (infinitheism)]

Adding Panellist to the Webinar is not working, please refer to the screenshot. Tested via Postman.

Sharing header information for ready reference.

[MultiplayerSession (Christopher Lee)]

Make sure you’re using the panelist’s /webinars/{webinarId}/panelists endpoint, not the registrant’s /webinars/{webinarId}/registrants endpoint.