Do you need to have an existing Sideline account to sign up for Enterprise? Follow Nope. If you're new to Sideline, you can sign up for Enterprise directly through the Enterprise website. Already have a Sideline account but want to switch to Enterprise? Click here for instructions. Questions? submit a request. Related articles Does the Admin need a Sideline number to manage the Enterprise account? Admin Getting Started Guide Enterprise sign-up for existing Sideline users Can I pay my bill directly? I started my free 7-day trial, when will I be charged? Comments 0 comments Please sign in to leave a comment.