Profile: PiotrO586

Problem:
An ajax form is set to display a message when submitted. The problem is it is inside an accordion cell of Layouts, and when displaying the message the page reloads and the relevant accordion section is not open.

Solution:
You need to add some custom JS for when the page reloads that checks whether it is reloading because the form was submitted (checks URL parameters), and then forces a click on the appropriate accordion. In this case, we are clicking the second accordion section:

( function( $ ) {
    $( document ).ready( function(){
        let url = new URL(location.href);
        let success = url.searchParams.get("_success_message");
        
        if ( success ) {
  
          $(".panel-group .panel:nth-child(2) a").click();
        }
    });
})( jQuery );