Note: In the Employees accrue box, you need to enter the total number of hours/days the employee should receive, not just the additional amount they receive from moving up to the new milestone.
Example: When employees get hired, they receive 80 hours of time off. On their one-year anniversary, they receive 40 more hours of time off to use each year. On the second milestone of the policy, you would enter 120 hours for the amount they accrue.