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Hi there. I'm trying to create a Purchase Order form for a small business that I work for. I'm in the process of making all the forms uniform, but this one's got me stumped. You see, purchase orders always come with a number assigned to them. Each time you write one, the number is one integer higher than the last you wrote. Well, I'm trying to find a way to put an automatically generated PO number in there so that, no matter who opens it, it will never again regenerate the same number. I considered using variations of the date and time field, but that was such a long number that it just wouldn't work. I'd like it to start from, say "KT-0001" and move up to "KT-0002" on the next load of that file. Any advice on some method making this work?