before asking my question ...How are you all ?    here i have written simple trigger which will simply update Description field at a time creating case record or update the record but if user has a case record where he found description is updated at the time of creation case record now he wants to modify it but when he saves he again gets same description which he deleted...?  trigger case_comments_update on Case (before insert,Before update ) {    for (case c: Trigger.new){        If(c.status == 'Working'){            c.Description = 'case is in working and user wants to modify this';        }    } }