Auto enrolled existing employees and New Hires to a new created plan FAILED

Summary:

We created a new plan that has eligibility that only employee with specific work location is eligible and we wanted that all the existing employee will be automatically enrolled to the plan and the new hires that eligible will be automatically enrolled to. But when I did all this steps.

1- Create the Fast formula

2- Attach the fast formula to the absence plan under participation tab.

Enrollment Start Rule - Formula

Start Date Formula - Formula created in setp1

3- Navigate to Schedule and Monitor Absence Processes and run Update Accrual Plan Enrollments process

(After these existing employees will be enrolled as of hire date)