Ticket #33008: 33008.2.diff

src/wp-admin/user-new.php

@@ -79 +79 @@
 
                         $roles = get_editable_roles();
                         $role = $roles[ $_REQUEST['role'] ];
+
+                        /**
+                         * Performs other actions when a user is invited to join a site.
+                         *
+                         * @since  4.4.0
+                         *
+                         * @param  int      $user_id             The invited user's ID.
+                         * @param  array    $role                The role of invited user.
+                         * @param  string   $newuser_key         The key of the invitation.
+                         */
+                        do_action( 'invite_user', $user_id, $role, $newuser_key );
+
                         /* translators: 1: Site name, 2: site URL, 3: role, 4: activation URL */
                         $message = __( 'Hi,