Rate limit: 5 requests per second

A schedule reads back as null once the broadcast has been dispatched; a broadcast paused before its schedule came due keeps it.

Sent, unsent and purchased figures, and the purchased amount, count the first message of the broadcast only; replies are counted across every step. Because of that a sequence can report more replies than sends, and its reply_rate then reads null rather than a figure above 1.

A broadcast whose content could not be read is listed with messages: [] and every figure at zero, rather than failing the page.

Required permission: priority_mass_messages.view

{
  "items": [
    {
      "id": "4312",
      "account_id": "12345",
      "created_by": {
        "id": "42"
      },
      "scheduled_at_timezone": "Europe/Berlin",
      "rules": {
        "end_at_timezone": "Europe/Berlin"
      },
      "messages": [
        {
          "price_gross": 9.99,
          "attachments": [
            {
              "id": "1289402"
            }
          ],
          "tagged_platform_account_ids": [
            "67890"
          ]
        }
      ]
    }
  ]
}