Social Posting KitBuilt

Social Posting – Facebook Page via Zernio (Content Queue)

Approved rows in a Google Sheet content queue are published to a Facebook Page through Zernio on schedule, with the post ID written back.

Workflow file is complete and imports inactive. No live test is recorded in the files.

Flow

Every 15 Minutes

Manual Test Run

Config

Read Content QueueGoogle Sheets

Select Due Approved Posts

Lock Row (publishing)Google Sheets

Prepare Post

Publish via ZernioZernio

Mark PostedGoogle Sheets

Mark Failed + alertGoogle Sheets

TriggerApp stepLogic stepResult

How it works

Every 15 minutes the workflow reads the queue tab of the content Sheet.
It keeps rows that are approved, due now and meant for Facebook, up to a per-run limit.
Each row is locked as publishing so it can't post twice.
One HTTP call to Zernio publishes the post to the connected Facebook Page.
The row is marked posted with its post ID, or failed with the error, and failures raise an alert for the error handler.

At a glance

Trigger: Schedule: Every 15 minutes, or a manual test run
Apps: Google SheetsZernioFacebook
Logins needed: Google Sheets (OAuth2), Zernio API key
Built by: n8n Workflows
Last updated: Nov 11, 2026
Status: Built: workflow file complete, not yet tested live

Setup notes

Create the content Sheet with a queue tab (id, platform, message, image_url, link, scheduled_at, status, post_id, error, posted_at).
Create a Header Auth credential for the Zernio API key, and a Google Sheets credential.
Connect the client's Facebook Page inside Zernio.
Fill in Config with the Sheet ID and set the Error workflow to Social Posting – Error Handler.
Test with one approved row that's due now, using Manual Test Run.

Good to know