Adext AI requires your Google and/or Facebook Ads account access token in order to access, read and write to your ad account. An ad account (Oauth2) access token is a secure way for Google and Facebook Ads to share access to your ad account without sharing your username and password to Adext AI.
For more information on Oauth2 see:
https://developers.facebook.com/docs/facebook-login/access-tokens
https://developers.google.com/adwords/api/docs/guides/authentication
If this error occurs while trying to associate your ad account for use in Adext AI then please send us a message through the chat icon at the lower right of your screen and we will research and attempt to solve why this is happening in your specific case.
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