Welcome to the RingCentral Community

I'm working on integrating SMS API in our CRM. So I create a sandbox account in which one user like a super admin is already created. So from the super admin number SMS is successfully sent but I want to test if any other user who is not super admin can send SMS or not.

For this purpose, I need to add one user, but when I try to add a user, you don't have any number left.

I try to purchase the phone number and add the user but can't.

So please let me know how I can add a user.

I also have another question as I have an existing RingCentral enterprise account where I add 20 users can I disable or delete any user from there and add the same phone number and user in the sandbox account?

Thank you.