Interaction object
An interaction represents a logged touchpoint with a contact: a phone call, a letter, a meeting, an SMS, an email, or a donation record. Interactions belong to a single contact and to the space (API key) that created them.Key fields
Tags
Interactions can be tagged for categorization. To attach an existing tag, pass itsid. To create a new tag inline while creating or updating an interaction, omit id and provide a name (and optionally a color). Tags can also be managed directly — see the endpoints below.
Updating interactions
PATCH /v1/contacts/{contactId}/interactions/{interactionId} behaves like a full replace (PUT): any field omitted from the request — including tags — is cleared. Always resend the full interaction if you only intend to change one field.

