Can you confirm that you’re passing the template ID in the request body?
Additionally, please note that the List Meeting Templates API can return templates that are set at both the User level and the Admin level. However, the template_id feature of the Create a Meeting API only supports the use of Admin level templates . Further, Admin level templates are not enabled by default, which may be why you’re seeing this issue.
Can you confirm if the template you’re applying is being set at the user or admin level?
Thanks!
Will