Create a scheduled message


Create a new scheduled message.

Changes: In Zulip 7.0 (feature level 184), moved support for editing a scheduled message to a separate API endpoint, which removed the scheduled_message_id parameter from this endpoint.

New in Zulip 7.0 (feature level 179).

Usage examples

# Create a scheduled stream message
curl -X POST \
    --data-urlencode type=stream \
    --data-urlencode to=9 \
    --data-urlencode topic=Hello \
    --data-urlencode 'content=Nice to meet everyone!' \
    --data-urlencode scheduled_delivery_timestamp=3165826990

# Create a scheduled direct message
curl -X POST \
    --data-urlencode type=direct \
    --data-urlencode 'to=[9, 10]' \
    --data-urlencode 'content=Can we meet on Monday?' \
    --data-urlencode scheduled_delivery_timestamp=3165826990


type string required

Example: "direct"

The type of scheduled message to be sent. "direct" for a direct message and "stream" for a stream message.

In Zulip 7.0 (feature level 174), "direct" was added as the preferred way to indicate the type of a direct message, deprecating the original "private". While "private" is supported for scheduling direct messages, clients are encouraged to use to the modern convention because support for "private" may eventually be removed.

Must be one of: "direct", "stream", "private".

to integer | (integer)[] required

Example: [9, 10]

The scheduled message's tentative target audience.

For stream messages, the integer ID of the stream. For direct messages, a list containing integer user IDs.

content string required

Example: "Hello"

The content of the message.

Clients should use the max_message_length returned by the POST /register endpoint to determine the maximum message size.

topic string optional

Example: "Castle"

The topic of the message. Only required for stream messages ("type": "stream"), ignored otherwise.

Clients should use the max_topic_length returned by the POST /register endpoint to determine the maximum topic length.

scheduled_delivery_timestamp integer required

Example: 3165826990

The UNIX timestamp for when the message will be sent, in UTC seconds.


Return values

  • scheduled_message_id: integer

    The unique ID of the scheduled message.

    This is different from the unique ID that the message will have after it is sent.

Example response(s)

Changes: As of Zulip 7.0 (feature level 167), if any parameters sent in the request are not supported by this endpoint, a successful JSON response will include an ignored_parameters_unsupported array.

A typical successful JSON response may look like:

    "msg": "",
    "result": "success",
    "scheduled_message_id": 42

A typical failed JSON response for when a stream message is scheduled to be sent to a stream that does not exist:

    "code": "STREAM_DOES_NOT_EXIST",
    "msg": "Stream with ID '9' does not exist",
    "result": "error",
    "stream_id": 9

A typical failed JSON response for when a direct message is scheduled to be sent to a user that does not exist:

    "code": "BAD_REQUEST",
    "msg": "Invalid user ID 10",
    "result": "error"