Post new articles from feeds to Slack channel

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

📄 Post New Articles from Feeds to Slack Channel

🧠 What This Workflow Does

This workflow automates the discovery and sharing of fresh articles from a curated list of RSS feeds. It performs the following steps:

1. Reads a list of RSS feed URLs from a Google Sheet (Feeds tab).
2. Fetches the latest articles from each feed.
3. Checks for duplicates against previously published links stored in another sheet (Posted Articles tab).
4. Filters out already shared articles.
5. Posts the new articles to a designated Slack channel with formatted titles and links.
6. Logs the newly shared articles back into the Google Sheet to prevent duplicates.

🛠️ Prerequisites

To use this workflow, you must have:

• ✅ Google Sheets OAuth2 credentials set up in n8n
  (Used to access and update the RSS feed and post history sheets)

• ✅ Slack OAuth2 credentials
  (Used to post messages to a specific Slack channel)

• ✅ A Google Spreadsheet with:

  • Feeds tab – Columns: title, link
  • Posted Articles tab – Columns: title, link, pubDate

🔧 Environment Variables or Custom Values

You will need to set the following n8n variable or replace with direct input:

• {{$vars.Daily_Industry_News_Automation_Google_Sheet}}:
  Reference to the Google Sheet Document ID (you can use a static ID if preferred)

Also update:

• Slack channelId: Replace with your actual Slack channel ID if not dynamically referenced

⏰ Trigger & Scheduling

• Trigger type: Cron node
• Default schedule: Every day at 7:00 AM

You can modify this in the “Trigger Workflow” node to suit your own schedule.

🎯 Intended Use Case

This workflow is ideal for:

• Marketing teams curating daily or weekly news digests
• Founders or industry professionals monitoring sector updates
• Automating internal Slack news updates
• Avoiding duplicate content when sourcing from multiple feeds