@Ivan in your function that processes the POST you need to get the value of the updated fields using request.parameters.nameofformfieldgoeshere and assign it to the form field that it needs to go into before you “paint” the screen. Suitelets are just a fancy name for web forms. On web forms when you do a GET you can access querystring variables using Request.QueryString[“querystringvariablename”]. When you do a POST you can access the form variables using Request.Form[“formvariablename”]. NS combines both with request.parameters regardless of whether it’s a GET or a POST.