Fix ad-account permission errors

Permission errors almost always mean your Facebook profile is missing a role on the Business Manager, ad account, Page, or pixel.

Checklist

• Confirm your profile is an admin of the Business Manager.
• Confirm you have full control of the ad account, Page, and pixel in Business Settings.
• Re-grant every permission when the AdFlow login window asks, do not skip any.
• If your account is new, complete any Meta security or identity checks.