Cannot massively assign benefit plans to eligible employees

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Hello, 
I have created a benefit plan with a specific eligibility profile associated to it (along with PLAN PROGRAM; PLAN OPTION; LIFE EVENT).
However, when I access as an eligible employee, I cannot see the associated benefit plan in ME>BENEFIT>.YOUR BENEFITS page.
The question is: how can I assign benefit plans to eligible employees and make them accessible by employees as well? Is there a particular batch to run that could allow me to massively assign benefit plans to eligible workers? 
Thanks in advance for your time! 
Regards, 

Valerio