Explanation of Coverage/Rate End Date Code "1 Prior or Month End" (Doc ID 563767.1)

The employee in question has lost eligibility for company paid benefits and is being enrolled in a plan whose cost is shared.
When the person became ineligible on 4/1, the ER contribution ended at the end of the month (4/30) instead of 1 prior (3/31).

As a side note, the repercussion of how the `1 Prior...' code is behaving is that when the employee is enrolled in the new plan, the new lower ER contribution should start on 4/1, so customer now gets a rate overlap error shown below:

ERROR
-------

APP-BEN-92690: You cannot enroll a person into a plan that
includes more than one activity rate with the same element
and input value.

The bottom line is that if the person becomes ineligible for their current enrollment but is still eligible for the plan type, the enrollment must be changed because there is a min/max on this plan type of min 1/max 1.
So, the coverage and rate end dates should be 1 prior.