IMPORTANT: Facebook Lead Ads Form Error

Questions
1

Hello. I’ve been trying to build this very simple workflow, didn’t expect such a headache.

Here is a quick loom video of me explaining it and showing the set-up and settings:
l▶️ Facebook Lead Ads to Multiple Channels - n8n - 23 January 2026 | Loom

I get an error about the leads form. (attached below)

image
image1494×828 57.2 KB

”"Could not load list

400 - (#100) Object does not exist, cannot be loaded due to missing permission or reviewable feature, or does not support this operation. This endpoint requires the ‘pages_read_engagement’ permission or the ‘Page Public Content Access’ feature or the ‘Page Public Metadata Access’ feature. Refer to https://developers.facebook.com/docs/apps/review/login permissions#manage pages, https://developers.facebook.com/docs/apps/review/feature#reference PAGES_ACCESS and https://developers.facebook.com/docs/apps/review/feature#page public metadata access for details.”

Please help me, I’ve been trying to fix it for the past 2 days, contact meta support, but still nothing..

2

Hi, @Gregory_T !

To resolve this, make sure the Facebook App has the pages_read_engagementpermission and Page Public Metadata access. If the app is in Development mode, the connected user must be an admin of both the App and the Page. If the app is in Live mode, these permissions must be approved via Meta App Review. After updating permissions, re-authenticate the Facebook credential in n8n.