What Are Contacts?
Contacts are key people associated with an account. A contact can only belong to one account, however, a contact may be associated with multiple opportunities. Your access to contact information is determined by your access rights to that contact's account. You always have access to your personal contacts.
You can use the Contact Detail view to work with and record in-depth information about a single contact, or the Contact List view to work with contacts in a spreadsheet-type format. You can create groups based on specific sets of conditions, or by individually choosing contacts.