Intro to contacts
You can keep everyone your productions work with (cast, crew, suppliers, and clients) in one address book for the space. From there, you add people to each project's roster with the role they play on that project.

The address book
Every space has one Address Book. A contact holds a person's name, email, phone, company, and notes, plus the details a production office needs on a shoot: an emergency contact, a postal address, food preferences, and when the person is available. A contact belongs to the space, so you enter someone once and use them on every project. See Manage the address book.
Project rosters
Each project has its own Contacts roster. When you connect a contact to a project, you give them a Role (such as Gaffer or Script Supervisor), a Department, and a Type: Cast, Crew, or Customer. The roster is what call sheets, the day out of days, and crew access read from. Removing someone from a roster leaves them in the address book. See Add contacts to a project.
Accepting a cast applicant or hiring someone from a crew posting adds them to the address book and to the project roster for you. See Review applicants and Review interest and hire.
Access and self-service
Most contacts never need a FilmKit account: they receive the call sheets and documents you publish to them. When a contact does need to look inside a project, you can link the contact to their FilmKit account. They then get read-only access to the projects whose roster they're on. You can also send a contact a private link so they can fill in their own details. See Share access and self-service links.
Availability
A contact's Availability card records dated windows when the person is Available, Booked, on Hold, or Unavailable. The schedule and the day out of days use these windows to flag shooting days that clash. See Check the day out of days.