message_reads Webhook Event Reference

Updated: Jun 21, 2022

This event will be sent to your webhook when a message a Page has sent has been read by the user.
You can subscribe to this callback by selecting the message_reads field when setting up your webhook.

Example

{
   "sender":{
      "id":"<PSID>"
   },
   "recipient":{
      "id":"<PAGE_ID>"
   },
   "timestamp":1458668856463,
   "read":{
      "watermark":1458668856253
   }
}

Properties

`sender`

`sender` Field	Description
`id` string	The Page-scoped ID for the person who sent a message to your business

`recipient`

`recipient` Field	Description
`id` string	The ID for your Facebook Page

`read`

Property	Type	Description
`watermark`	Number	All messages that were sent before or at this timestamp were read

The watermark field is used to determine which messages were read. It represents a timestamp indicating that all messages with a timestamp before watermark were read by the recipient.