Unable to control the count of registration limit from our app

I have created and published an OAuth application in the Zoom App Marketplace, I have integrated zoom into my application and created webinar from our app and i have zoom pro plan with max registration limit 500, so suppose i will enter registration limit more than 500 it is not getting updated in zoom webinar but that getting added into my app so is there is any way to get the zoom account user registration limit as per plan before creating webinar into zoom using our application?