Note object
A note is a free-text entry attached to a single contact, optionally pinned to the top of that contact’s page. Notes belong to a contact and to the space (API key) that created them.Key fields
Internal-only notes (restricted to users with the private-notes permission) are not exposed through this API: you will only see and create notes visible to the group at large.
Updating notes
PUT /v1/contacts/{contactId}/notes/{noteId} is a full replace: any field omitted from the request — including pinned — is cleared. Always resend the full note if you only intend to change one field.

