The Auto-Approval step is an additional first step in workflows (except Vendor approval workflow) that's available during trial periods and Advanced feature trial periods and in Advanced/Premium plans.
In this step, you can enter conditions for the automated approval of requests regardless of any rules specified in other approval steps or workflow settings. If a request meets the criteria stated in the Auto-Approval step, it will be automatically approved right away.
Here is How to set up the Auto-Approval step.
Feel free to watch our video on How to configure Auto-approvals.