@mentions

This guide explains how to publicly reply to a specific person, who has posted on your Page or commented on your Page post, in a comment or reply. A notification will be sent to the person who has been mentioned by the Page.

Common Uses

Reply to a specific person in a Page post that received multiple comments.
Batch reply to multiple people who commented on a Page post or replied to a Page post comment.

Limitations

In the Settings of your Page, you must have allowed Others Tagging this Page.
A Page can only mention a person if the person commented on a Page post or if the person created the Page post.
If your app is in Development mode, you must be an admin or a developer of the app and use Pages of which you are an admin. All Pages (both to make the API call, and to be used in a mention)

Before You Start

You will need:

A Page access token requested by a person who can perform the CREATE_CONTENT task on the Page
The pages_read_user_content permission
The pages_manage_engagementpermission
The Page Mentioning Feature
A Page access token requested by a person who is able to perform the MODERATE task on the Page being queried.
The Page Post ID or Comment ID of the Page post or comment in which you want to reply with mentioning a person
The User ID of the person who created the Page post or comment.

Mention a Person

Reply to a Post

Send a POST request to the /{page-post-id} endpoint:

curl -i -X POST "https://www.graph.facebook.com/{page-post-id}
  ?message="Thanks for your post to our Page, @[{user-id}]"
  &access_token={page-access-token}"

On success, your app receives the following response:

{
  "id": "{comment_id}"
}

Reply to a Comment

Send a POST request to the /{page-post-id}/{comment-id} or the /{comment-id}/comments endpoint:

curl -i -X POST "https://www.graph.facebook.com/{page-post-id}
  ?message="Thanks for your comment on our Page post, @[{user-id}]"
  &access_token={page-access-token}"