Benefit certifications - restrictions

Summary:

We need to set tiers(levels) in benefit certificate restrictions –

The rules should be as follows for current employees during enrollment:

• If an employee currently has coverage that is below the GI, they can increase 1 level without EOI (Employee increments set to 10K, GI is 200k).
• Increases that exceed 1 level or exceed the GI amount require EOI.

Example: -

Current coverage amount – 20 k

If the employee raises coverage to 30 k –EOI is not required

If the employee raises coverage to 40 k/ 50k (anything above 40k) - EOI is required 

Can this be achieved through configuration changes? Or is there something else we can do?