When a .box name has DNS, it needs WHOIS contact details. Rather than retype them for every name, you keep a set of contacts in one place and reuse them. You manage these under My Account, on the Domain Contacts tab.

Domain contacts exist to fill WHOIS records, which only apply once DNS is active. If you have not enabled DNS on any name, this tab prompts you to enable DNS first, and you cannot add contacts until you do. See Enable DNS on your name.

A contact is a person's WHOIS details (name, organization, email, phone, and address). The same contact can be assigned to any of the four roles (registrant, admin, technical, billing) on any of your names. That is why managing them here, once, saves repeating the work per name. Your details are privacy protected by default and are not published in the public WHOIS directory.

Choose Add contact and fill in the form. Every field is required except Organization. You can mark one as your default contact, which flags it with a badge in your list for your own reference. my.box checks each field and flags anything that does not look right before you save.

Choose a contact to view it, then Edit to change it. Editing matters because a contact is shared: changing it updates that contact everywhere it is used, and my.box re-sends the updated details to the registry for every DNS-enabled name that uses it. So an edit here can touch several names at once, which is usually what you want when your details change.

You can delete a contact only when no name is using it. If a contact is still assigned to one or more names, my.box lists those names and asks you to switch them to a different contact first. Once a contact is unused, deleting it asks you to confirm, since it cannot be undone.