`message_deliveries` Webhook Event Reference

Breaking Change Notice

Effective February 19, 2018, this webhook event will no longer be triggered by message sends that use recipient.user_ref or recipient.phone_number to identify the message recipient.

This callback will occur when a message a Page has sent has been delivered. You can subscribe to this callback by selecting the message_deliveries field when setting up your webhook.

Example

{
  "sender":{
    "id":"<PSID>"
  },
  "recipient":{
    "id":"<PAGE_ID>"
  },
   "delivery":{
      "mids":[
         "mid.1458668856218:ed81099e15d3f4f233"
      ],
      "watermark":1458668856253,
      "seq":37
   }
}

Properties

`sender`

Property	Type	Description
`id`	String	The PSID of the user that triggered the webhook event.

`recipient`

Property	Type	Description
`id`	String	Your Page ID.

`delivery`

Property	Type	Description
`mids`	Array	Array containing message IDs of messages that were delivered. Field may not be present.
`watermark`	Number	All messages that were sent before this timestamp were delivered
`seq`	Number	Sequence number

Both mids and watermark fields are used to determine which messages were delivered. watermark is always present and mids is sometimes present. mids provides delivery receipts on a per-message basis but may not be present (due to backward compatibility reasons with older Messenger clients). watermark is always present and is a timestamp indicating that all messages with a timestamp before watermark were delivered.

message_deliveries Webhook Event Reference