# Add a historical message to a conversation (deprecated) Endpoint: POST /v1/conversations/{csid}/messages/historical Version: 1.0.0 Security: ApiKeyAuth, BearerAuth ## Path parameters: - `csid` (integer, required) ## Request fields (application/json): - `channel` (string) The channel a conversation can be conducted on. Enum: "widget_chat", "phone", "voice_mail", "email", "contact_form", "callback", "facebook_messenger" - `direction` (string) The direction a conversation can be Enum: "outbound", "inbound", "internal" - `from_email` (string) A regular email. - `to_email` (string) A regular email. - `text` (string) - `author_id` (string) - `attachments` (array) A list of attachments. - `attachments.url` (string, required) A valid attachment url ## Response 200 fields (application/json): - `data` (object, required) - `data.id` (string, required) - `data.created_at` (string, required) Example: "2015-11-30T00:00:00:000Z" - `data.author_id` (string, required) - `data.channel` (string, required) The channel a conversation can be conducted on. Enum: "widget_chat", "phone", "voice_mail", "email", "contact_form", "callback", "facebook_messenger" - `data.direction` (string) The channel a conversation can be conducted on. Enum: "widget_chat", "phone", "voice_mail", "email", "contact_form", "callback", "facebook_messenger" - `data.attributes` (object) - `data.attributes.text` (string) - `data.attributes.to_emails` (string) - `data.attributes.cc_email` (string) - `data.attributes.from_email` (string) - `data.attributes.inline_images` (string) - `data.attributes.attachments` (string) - `data.attributes.direction` (string) - `data.attributes.a_phone_number` (string) - `data.attributes.b_phone_number` (string) - `data.attributes.is_automated_message` (string) - `data.attributes.is_auto_reply` (string)