How to setup the AdRoll integration
First, navigate to the home dashboard for the campaign where you'd like to connect the AdRoll integration. Then, choose "Ads --> AdRoll" from the dark navigation bar on the left-hand side of your screen.
Next, click the link in the middle of the screen that says "Connect Account".
A window will pop up asking you to enter your user name and password for your AdRoll account. Enter the user name and password of the account that has permissions to the AdRoll client account which you would like to connect.
Finally, you will be prompted to select the customer account which you would like to connect. Click the radio button next to the appropriate account, then click "Save".