When users are provisioned using auto-provision, they're logged in a list that can be found at System > Automation > Clear Auto-Provision. With the passage of time, there are instances where users are deprovisioned for various reasons and may need to be auto-provisioned again, but they will not be auto-provisioned if they're on that list. Repeatedly clearing the list manually is not possible. It will be of great help if users can be cleared autonomously from the list.