post dated script
I'm new to FMP 11. I have a inventory/invoice data base that I've been using for several years and want to add a "tax rate" field. I figured out how to do it and it works great except that it changes all the past taxes to zero because they didn't have a tax rate. How can I make the tax rate effictive after a certain date so as not to effect the earlier posts?
Im on Mac, Lion