OptionalappIdentifier of the specific integration app or bot.
OptionalcreatedRecord creation timestamp (Unix Epoch in milliseconds).
OptionalisRepresents if usere is real person or automatic script.
OptionalissProvider-specific unique identifier (Issuer ID).
OptionalmetadataAdditional dynamic attributes provided by the messenger.
OptionalnameDisplay name of the contact.
OptionalsubAssociated internal system subject/identifier.
OptionaltypeChannel type (e.g., 'webchat', 'telegram').
OptionalupdatedLast record update timestamp (Unix Epoch in milliseconds).
OptionalusernameTechnical username or handle.
Optionalvias
Contact represents an external messaging identity.