For our system to create a custom audience on your behalf, you must first accept the Terms of Service for each ad account. This is a one-time action per ad account.
To accept Meta's terms of service:
Copy and paste the following URL into your browser, but do not hit enter:
https://business.facebook.com/customaudiences/app/tos/?act=AdAccountID
You'll need to update the link above by changing AdAccountID to your specific ad account ID from Meta. To find this ID:
Open a new tab and navigate to Ad accounts in Meta’s business settings.
Select your ad account on the left.
Find the account ID, under the account name on the right.
Copy the ID.
In your original tab, replace AdAccountID with the ID you copied from Meta, then hit enter.
Review and accept the terms of service.