Drop down field value change on client script

PHPMaker General Discussion (PHPMaker)
1

I am writting code on my project on a drop down field client script. Below code show sweetalert message with a ok button. when user press ok button a drop down menu and a text field value will change. Sweetalert message is appearing and after pressing ok button text field value also changing but drop down field value not changing.

 if (machine_occupancy > 0) {
      
// Check if the quantity input is higher than the store status
       Swal.fire({
            icon: "warning",
            title: "Machine Occupied",
            text: " Batch No: " + batch_no + " of " + customer_name + " is currently processing " + process + " on " + machine + " machine. Please check Finishing Activity section if process is not yet complete.",
            confirmButtonText: "Ok",
            }).then(function() {

            // Clear and focus the quantity input field
              $(this).fields("x_delivered_to").value('Processing');   // this is drop down menu
             $(this).fields("x_delivered_by").value(4);                      //// this is text field
                       
          });
        } else {
          // Do nothing, the quantity is valid
          // You can add additional logic or actions here if needed
         
        }

      });
      
       }

$(this).fields(“x_delivered_to”).value(‘Processing’); this drop down field value is not changing. Can experts identify where i made mistake?

2

If the value “processing” does not already exists (options already loaded by user selecting an option before), the options are not loaded yet so you cannot select. You may either: