The terms under which the Professional Plan is available might change in the future.
To request you need to have an active Trial Plan account. In case you have not yet signed up for Camunda Cloud, you can do it via the signup form.
To request early access to the Professional Plan, use the button in the navigation bar. This will send a request to the Camunda Sales Team, and an Account Manager will contact you as soon as possible. The account manager will explain the conditions and next steps to you.