Use of Coverage in Benefits Module

Summary

Will Coverage have any impact on the payroll

Content

I am new to Benefits module. Please help me with the clarification. Let us consider a Health Insurance Plan. I understand that the Rate we attach to the benefit plan is the amount the amount that will be deducted from the employee as part of the plan enrollment. Rate is interfaced to the Payroll. What is the effect of the coverage in this plan. I did  not see any interface to payroll. Please clarify.