Salesforce Platform Developer I Certification Guide

Contacts

This refers to the individuals working on your accounts with whom you have contact. It mostly contains more personal details such as date of birth, gender, and language. Additionally, it can also contain company details, such as title, department, and, optionally, their relationship to another contact to whom they report. This ReportsToId lookup field is similar to the Parent Account field, and allows you to present a hierarchy between your contacts.

Under normal circumstances, a contact is always directly related to an account. It is possible to mark the account lookup as non-required, but when a contact is not associated with an account, then it becomes a private contact instead. Private contacts are only visible to the record ...