DB Trigger Error: schema "supabase_functions" does not exist when invoking Edge Function

[TMtechnologyprj]

Hello, Supabase community,

I'm facing a critical issue when trying to invoke an Edge Function from a PostgreSQL database trigger, and I'm hoping someone might have some insight.

The Goal:
I have an Edge Function named trigger-n8n-onboarding deployed successfully. The goal is to have a PostgreSQL trigger on my public.profiles table call this function AFTER UPDATE, specifically when a user completes their onboarding (onboarding_completed_at column is set).

The Problem:
When the trigger fires, it executes a PostgreSQL function that attempts to call supabase_functions.invoke(...). This call fails, and my PostgreSQL logs show the following warning (captured from my EXCEPTION block):
WARNING: [KODEX_FIT_TRIGGER] ERRO ao invocar Edge Function: SQLSTATE: 3F000, MESSAGE: schema "supabase_functions" does not exist

Troubleshooting Steps I've Already Taken:

My Edge Function (trigger-n8n-onboarding) is deployed and visible in my Supabase dashboard with the correct code.
The pg_net extension is enabled in the extensions schema.
I ran SELECT nspname FROM pg_namespace WHERE nspname = 'supabase_functions'; and it returned no rows, which seems to confirm the schema is missing or not visible.
I have already run the SQL provided by the Supabase Database Linter to fix security and performance warnings (moving extensions to the extensions schema and setting a secure search_path on my trigger functions).

It seems to be a project provisioning issue where the internal supabase_functions schema, necessary for this interaction, is not present.

Has anyone encountered this before? Is there any other step I can take to try and force a reprovisioning of this internal schema? I'm happy to provide my Project ID to a Supabase team member through a secure channel if needed.

Thank you!

[GaryAustin1]

Do you have Webhooks enabled? That schema is part of webhooks.
There is no supabase_functions.invoke that I know of.
https://supabase.com/docs/guides/database/webhooks