If you receive your American Express Open Business Card and you want to active it you can activate it by going to www.Open.com/Activate. On the website, you will see an image of the American Express card with a layout similar to your actual physical card. Enter in the card account number and the 4 digit card ID to begin the activation process.
In step 2, you will be able to customize your account options and finally get confirmation that your card is ready to be used. The American Express Open small business card is a great card for small business. It also has the little known OpenSavings program that provides small businesses with great discounts. To activate your card, go to www.Open.com/Activate