Automated publishing to LinkedIn, Instagram and Facebook

The problem

Posting regularly is the steadiest way to stay visible to clients, partners and customers, but it is the first thing to slip when a team is busy. Someone has to remember the date, find the right image, copy the caption and hashtags, upload everything and then note that it is done. Posts went out late or not at all, captions were copied wrongly, and nobody could say afterwards which posts had actually been published.

What we built

We built a publishing system that works the same way for LinkedIn, Instagram and a business Facebook Page. The team plans every post in one Google Sheet, with an image link, caption, hashtags and post date for each row. Images stay in Google Drive, so nothing needs to be downloaded or uploaded by hand.

An n8n workflow runs every morning at 10 a.m. (India time), picks up the posts due today, publishes them through each platform’s official API and writes the result back to the same row. Every row shows Posted or Failed, with the Post ID or the reason for the error.

The result

The team now works in one place: a sheet they already know. Posts go out on schedule without anyone logging in at the right time, and a single look at the sheet shows what was published, what failed and why.

A team publishing 20 posts a week spends roughly 3 hours on it by hand. With the automation that drops close to zero. Manual times are estimates for a small team, and actual results vary.

Tech approach

Google Sheets as the content calendar, Google Drive for image storage, and n8n for scheduling and workflow logic, publishing through the LinkedIn API and the Meta Graph API for Instagram and Facebook. Platform access is kept in secure n8n credentials, not in the sheet.