In order to connect your sovrn Commerce (formerly VigLink) account to Afflytics, you will need your sovrn Secret Key.
You can obtain your Secret Key by visiting https://publishers.viglink.com/publisher/, logging into your account, and navigating to the Sites page. On the top right of the navigation, click your name and click "Sites". See Screenshot.
Once on the Sites page, click the Key icon beside the site you want to connect to Afflytics. See Screenshot.
Once on the site you want to connect to Afflytics, copy the Secret Key and keep it somewhere safe. If you don't have a secret key, click "Generate Key".
Once you have your secret key, you can connect your sovrn account to Afflytics by clicking "Connect" under the sovrn logo on the Afflytics Setup page.