# CreateUserRequest Creates a human user without creating a credential, role assignment, grant, or external authentication mapping. - `userId` (`string | null`, optional): Optional client-provided user UUID; generated by the server when omitted. - `email` (`string`, required): Unique, nonempty email address. - `username` (`string | null`, optional): Optional unique username. - `displayName` (`string | null`, optional): Optional human-facing display name. - `labels` (`Record | null`, optional): Optional labels for organization and filtering. At most 20 entries; keys and values contain at most 255 characters; keys use [a-z0-9._-]. [TypeScript](../../typescript.md)