Dependent SSN updates

Summary

Best place to update a dependent's SSN

Content

Hi Everyone, 

As an Admin, where do you go to update/correct a dependent's SSN or any of their contact information? Manage Person for the dependent? Manage Person for the employee under their 'Contacts' tab? or Manage Contacts under Enrollment in Benefits?  Do all of these sync up? Does it matter where it's updated?  We made a correction recently in Manage Person for the dependent. Manage Contacts in Benefits also updated but it did not update under the Contacts tab for Manage Person of the employee. 

On a side note, we are configured to allow contact updates by the employee only through 'Manage People I Plan to Cover' in Benefits. We've hidden the ability in ESS.