What happens when you reach limits of members or concurrent automation workers in Space On-Premises? Follow

When you reach the maximum limit of members in Space On-Premises, it will not be possible for new users to register unless you upgrade the subscription to more members or unless some of the previously created members are deactivated or deleted.

When you reach the maximum limit of concurrent automation workers in Space On-Premises, your new automation jobs will wait until one of the active automation workers finishes the current job and will make space for the next one to operate within the concurrency limit.

We are working on the overdraft feature, which should make it easier to overuse members and/or automation workers beyond those included in the plan and post-pay for the overuse at the end of the billing period.