# Server Notices The API to send notices is as follows: ``` POST /_synapse/admin/v1/send_server_notice ``` or: ``` PUT /_synapse/admin/v1/send_server_notice/{txnId} ``` You will need to authenticate with an access token for an admin user. When using the `PUT` form, retransmissions with the same transaction ID will be ignored in the same way as with `PUT /_matrix/client/r0/rooms/{roomId}/send/{eventType}/{txnId}`. The request body should look something like the following: ```json { "user_id": "@target_user:server_name", "content": { "msgtype": "m.text", "body": "This is my message" } } ``` You can optionally include the following additional parameters: * `type`: the type of event. Defaults to `m.room.message`. * `state_key`: Setting this will result in a state event being sent. Once the notice has been sent, the API will return the following response: ```json { "event_id": "<event_id>" } ``` Note that server notices must be enabled in `homeserver.yaml` before this API can be used. See [server_notices.md](../server_notices.md) for more information.