# Messages

This API collection enables two-way communication between guests and properties. Use these endpoints to send and receive messages, include attachments, follow conversations, and more.

 - [POST /messages/send](https://developers.booking.com/demand/docs/open-api/3.2-beta/demand-api/messages/send.md): Use this endpoint to send a message to a conversation. You can include plain text and optionally attach a file using an attachment ID from a previous upload.
 - [POST /messages/latest](https://developers.booking.com/demand/docs/open-api/3.2-beta/demand-api/messages/latest.md): Use this endpoint to **fetch the most recent messages**, including messages sent by both the property and the guest. By default, up to **100 messages** are returned in reverse chronological order (new
 - [POST /messages/latest/confirm](https://developers.booking.com/demand/docs/open-api/3.2-beta/demand-api/messages/confirm.md): Use this endpoint to confirm receipt of messages. Confirmation is required in order to receive new messages from POST /messages/latest.
 - [POST /messages/attachments/metadata](https://developers.booking.com/demand/docs/open-api/3.2-beta/demand-api/messages/metadata.md): Use this endpoint to get basic information about an uploaded file, such as its name, type, and size.