Customize users frontend forms messages

Hello,

I would like to add Errors or Success messages to the page when users change their informations on their profile page (in addition of ap-notify system). I’ve tried to use this jQuery hook ‘ap_after_ajax’, but it do nothing :

$(document).on('ap_after_ajax', function(e, data) {
  // It do nothing
  console.log('ap_after_ajax');
});

How can I customize my errors or success messages for user sections forms ?

Thank you!