I apologize if this has already been answered - wasn't quite sure how to search for it. When we upload postal codes to Marketo via CSV, the file strips leading 0's from all postal codes. Our postal codes are set up as string fields in Marketo to allow international zip codes as well. Does anyone have a way to identify 4-digit postal codes and automatically append a zero out front? I'm thinking we could probably use a webhook service to do this, but I'm hoping for an easier way.