Contact points are specific ways of contacting the organization, person, or contact. You can create and update these types of contact points: phone numbers, e-mail addresses, and URLs.
The primary contact point is the identifying contact point for each type. For example, of all e-mail addresses that a person has, only one is designated as the primary, or identifying, e-mail for that person.
The primary contact point must be active. When you update a contact point to be primary, but one already exists, the primary contact point for that type is switched from the previous contact point to the newly designated one.
You can view source system details for the contact point, create a source system for the contact point, or view the contact point's source system history details, remove, or inactivate contact points. You cannot remove a primary contact point until you update another contact point of the same type and designate it as primary.