AWeber is a service that helps you manage email subscription lists. The Easy Digital Downloads extension for AWeber helps you connect the service to your store, and allows customers to subscribe to your email lists on AWeber during the checkout process.
The configuration settings for EDD AWeber are found by navigating to Downloads → Settings → Extensions.
AWeber Authorization Code
The first setting is an Authorization Code. This allows your site to communicate with your account at AWeber. Next to the Authorization Code field is a direct link to get to your AWeber page for getting this key. If you're already logged in it will take you directly to a page telling you you've authorized Easy Digital Downloads and present you with a key which will be a long string of random letters and numbers. You will copy the authorization code and then paste it into the "Aweber Authorization Code" field in Downloads → Settings → Extensions.
Show Signup on Checkout
If this option is checked the customer will have the ability to subscribe to your Aweber list during the checkout process. If the customer chooses to, their email address will be subscribed to your list at AWeber. See "Checkout Label" below for settings.
Choose a list
This allows you to choose the Aweber list you'd like customers to be subscribed to if they opt-in during checkout.
This allows the site admin to set what will appear next to the subscribe checkbox on the checkout page. (Example: Join Our Newsletter!)
Download Specific Settings
When editing a specific Download there will be a meta box in the right column labeled AWeber. It will show all the email lists available on AWeber, and the site owner may pick one to be attached to this Download, and override the global setting.
If this option is enabled, then when the customer checks out and opts-in they will be subscribed to THIS list, rather than the one set in the main AWeber settings area. This allows you to set up a custom list for each product, and once you have a list built up for a specific product you can email that list with new releases, security issues, etc.