As the document said:
Tenant-level application meeting configuration is required to allow an application to call this API. You should ask the tenant admin to call the following cmdlet on the tenant remote PowerShell to grant the permission to the application to call this API. For more information, see Set-CsApplicationMeetingConfiguration.
Set-CsApplicationMeetingConfiguration -AllowRemoveParticipantAppIds @{Add="app_id"}