10-18-2023 09:35 AM - edited 06-26-2024 11:10 AM
We would recommend that you use the newest Facebook Conversion API.
If you still wish to use the Facebook connect app, It's important to note Admin permissions are associated with the authenticated e-mail & need access to both the ad account (user-level access) and the Business Manager account (admin-level access).
The likely cause of the issues is admin permissions associated with the user.