Custom admin notification’s recipients

By default, admin notifications will be sent to all adminstrators. However, in case you have many adminstrators on your site, you may want to customize the list of recipients. This code snippet will allow you to do that.

/**
* Custom admin notifications recipients
* 
* @return int[] admin recipients IDs
*/
function wpca_customize_admin_notifications_recipients() {
    return [1, 8];
}