We don't have an auto update on credit cards, but you can send an email through our mail wizard for people with expired or expiring credit cards. Go to Customers, click on Advanced Search/sort (upper right corner), leave the radio button clicked at Customer Search, and hit Next. Pull down to select the preferred credit card expiration dates (for example, if it's April, 2016, you'll want the first pull down to say "any" and the second pull down to say March, 2016), then click search at the bottom of the page. You can then click Mail Wizard at the top to send an email. Make sure your criteria is "Results of Current Search" when choosing who you are sending the email to.