message_metadata_deleted event

{
    "type": "message_metadata_deleted",
    "channel_id": "CJN879K8A",
    "event_ts": "1658907498.002500",
    "previous_metadata":
    {
        "event_type": "task_created",
        "event_payload":
        {
            "id": "TK-2135",
            "summary": "New issue with the display of mobile element",
            "description": "An end user has found a problem with the new mobile container for data entry. It was reproduced in the current version of IOS.",
            "priority": "HIGH",
            "resource_type": "TASK"
        }
    },
    "app_id": "AQF4F123M",
    "bot_id": "B8241P2B34D",
    "user_id": "UA8829BFL",
    "team_id": "T12F3JCAP",
    "message_ts": "1658905974.587109",
    "deleted_ts": "1658907498.002500"
}

The message_metadata_deleted event is sent when a message's metadata has been deleted. Within the payload there will be a previous_metadata section notifying you of what has been deleted.

Similar to message_metadata_posted and message_metadata_updated, your app will only subscribe to the event types defined within the metadata_subscriptions key within your app's manifest file (in this example, the task_created event). For more information about this, check out the metadata documentation.