This is a URL that allows you to download invoice summary as a PDF -
This URL only works for you, if you have an access to the ad account, and while you’re currently logged in to facebook with this profile.
I’m wondering if there’s a way to use GET or some other technique in order to retrieve this PDF file to a zap, and then use it somehow (saving it in Google Drive for example). Obviously Zapier don’t have access to this URL so it won’t be able to get the file. Is there maybe a way to grant some kind of permission for Zapier to do that?