Thanks for confirming Paulo.
As feedback, I think Retool would benefit from expanding the API (at least provisioning users) to the professional plan. This would allow small startups and bootstrapped companies to launch their SaaS smoothly, with consequental user increase for retool. It seems this is legacy of focusing on enteprise companies only, but the more you focus to enable interaction with external clients, the more this will become a need.
Ironically retool is currently amazing for API connections with almost everything, except their own...