Script:  

function onChange(control, oldValue, newValue, isLoading, isTemplate) { 

//    if (isLoading || newValue === ”) { 

//       return;  } 

   var getValue = g_form.getValue(“u_sts_user”); 

   if(!getValue){ 

    g_form.setReadOnly(“u_sts_mode”, true) 

    g_form.setReadOnly(“u_requirements”, true) 

    g_form.setReadOnly(“u_sts_user_comment”, true) 

    g_form.showFieldMsg(“u_sts_user”, “Select User First”, “info”); 

   } 

   else{ 

    g_form.setReadOnly(“u_sts_mode”, false) 

    g_form.setReadOnly(“u_requirements”, false) 

    g_form.setReadOnly(“u_sts_user_comment”, false) 

    g_form.hideFieldMsg(“u_sts_user”, true); 

   } 

} 

In this script, the “isLoading” check is commented out, allowing the onChange Client Script to run during form load. When the form initializes, ServiceNow sets the value of “u_sts_user”, which triggers the script and locks related fields until a user is selected. This ensures the form remains controlled both on load and during user interaction.