I have a web form that passes through a multi picklist field to a case object. Problem is that they come through as comma seperated but i need them to be semi-colon seperated. i will work with the web developers to see if they can pass them through as semi-colon seperated but in the event that they can't; what would my options be to create a field update to replace the comma with semi-colon. I tried doing a field update but apparently thats not available with a multi picklist field.