You will first need to go to www.axs.com to set up an AXS account. You can do that by clicking "Sign In" from the menu at the top, and then clicking on "Create Account". Be sure to register with the same email address that was used to purchase tickets.
After you have created your account, make sure to download the AXS mobile app. This is where you will receive a barcode for the venue to scan when you arrive.
If you already have an account on www.axs.com under the same email address you provided when placing your order, you will not need to create a new account. You will receive an email notifying you that the tickets have been transferred to your account.