Hi @on.shin.90821_1,
Happy to clarify.
CustCreate users are non-login users created via API. If you also create a meeting via API, you can specify the user ID of the API user as the host and the start_url will reflect them as the meeting host when used to start the meeting—this will launch the Zoom Client.
If you’re looking for a standard experience, where users can log in and view the Zoom UI, the “create” action would be recommended.
Let me know if this helps,
Will