There are instances when you need to disable user registrations for your app. This may be needed if you are going to run a limited beta test of your application and allow only some users in. Alternatively, your app may require manual user registration (or you plan to import users from another system).
Whatever the reason, disabling user registrations in a Backendless backend is very easy:
Once the registration is disabled, any user registration API call will result in an error.