Create Ticket Message
Create a new message in a ticket. Set is_internal_note to post an internal note visible only to team members.
Authentication and permissions
Token requirements: User-based token (OAuth) or Organization-scoped API key or Team-scoped API key. Send a bearer access token for one of these identities. The permissions and resource restrictions below also apply.
- Requester reply: The caller must be authorized for the ticket requester and post as themselves. Not available for internal notes, or for team-private tickets while team-only ticket access is enforced.
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Path Parameters
The ID of the ticket to add a message to.
Body
The content of the message.
The ID of the user who authored the message.
Optional. Whether to trigger the AI help agent workflow for this message. Defaults to true. Set to false to suppress the help agent (e.g. when syncing messages from an external system or posting automated replies).
Optional. When true, the message is created as an internal note, visible only to team members and never surfaced to the requester. Defaults to false.
A timestamp in RFC 3339 format (e.g., "2025-01-15T01:30:15Z").
"2025-01-15T01:30:15.000Z"
Response
Success

