Issues Setting up the Facebook Trigger

Questions
1

Describe the problem/error/question

So, I’m trying to set up the Facebook Trigger to get notified when someone comments on one of my Facebook Posts. I’ve precisely followed the steps at Facebook App credentials | n8n Docs. I do successfully receive test webhooks (When I click “Test” in the Facebook App/Webhook interface). However, I’m still not receiving the webhook when someone comments on my post.

After Googling it a bit, it sounds like maybe I needed a Page Access Token instead of a User Token. So I created one of those, and inserted it in as the “Verify Token” under Webhooks in my Facebook App, and I also added it as the Access Token in n8n. However, now when I click “Test Step” in n8n, I get this error: “Facebook Trigger: (#190) Application Secret required for this endpoint”

So then I grabbed my App Secret from my Facebook App, and pasted in the App Secret field for my Facebook Credentials, but I still get the same error: “Facebook Trigger: (#190) Application Secret required for this endpoint”, even though I added the App Secret?

Could this be an n8n bug?

Any help is VERY much appreciated!

Information on your n8n setup

  • n8n version: 1.78.1
  • **Running n8n via n8n cloud
  • Operating system: Mac OS
2

It looks like your topic is missing some important information. Could you provide the following if applicable.

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:
3

Am experiencing the same issue.
Anyone found a fix. been debuging this for 3 days straight.

4

n8n version: 1.78.1
running default n8n execution process on n8n cloud

5

Just to add that I have the same issue. Already tried to find a solution, and so far nothing.

6

Hello,

I got the same issue! Trying to get it to work but it somehow doesn’t read the App Secret Key (or I’m doing something wrong :/)

Any help is appreciated!

7

I resolved the problem by following steps:

    1. Generate app access token using this query
    1. Change access token of trigger node to above generated token

References:

2 Likes
8

yes it works but , i cant get the webhook to actualy pick up on any page event