I'm building a series of databases to keep track of my company's orders that we will eventually switch to to place orders as well (with printable and send-able POs, etc). As I've been entering data, I've been entering old PO numbers as the Order IDs, but I would like to switch to an autonumber starting from the first un-used PO number that we have when we start using the database to place new orders, so that they are automatically kept consecutive (which is now the job of an administrative assistant and a notebook). I'm assuming this can be done, but I can't seem to figure it out. Anyone know the process?