Schedule the content calendar: Slack for cross-posting
Runs on a schedule across Slack, Google Sheets and PostgreSQL, runs the text through an AI chain, then reads the feed and keeps only what is new. Built for cross-posting, around a "Read Source Feed" step, in 22 documented nodes.
Schedule the content calendar with PostgreSQL and Slack for your team for Cross-Posting. An original, ready-to-import n8n workflow built around the 'Social Scheduler' pattern for marketing & advertising. It runs on a schedule and orchestrates 22 nodes across Slack, Google Sheets, HTTP / REST API. It uses n8n's LangChain AI nodes (Agent/Chain + chat model). Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. Nothing slips through the cracks.
Key benefits
- ✓Keeps Slack and Google Sheets in step for cross-posting, without anyone re-typing a row
- ✓Safe to re-run: records already in Slack or Google Sheets are skipped, across all 22 nodes of this cross-posting build
- ✓A failed Slack or Google Sheets call is retried rather than dropped, at any of the 22 nodes in this cross-posting build
- ✓Every cross-posting run leaves an audit row behind, alongside Slack
- ✓The cross-posting AI step is isolated from Slack, so models swap without touching the other 22 nodes
Use cases
- →Teams keeping Slack and Google Sheets aligned by hand for cross-posting
- →Cross-posting work where "Read Source Feed" is still a manual step before Slack
- →Cross-posting work that only reaches Slack on a schedule, when someone remembers to start it
Integrations
Workflow preview (22 nodes)
The template's actual node layout and connections. Node parameters and credential slots unlock with the download.
What's inside (22 nodes)
A look at the node types this workflow uses. No purchase required — full parameters and credentials are yours after you buy.
From download to running in 3 steps
- 1Import. In n8n, open Workflows → menu → “Import from File” and pick the downloaded JSON.
- 2Connect. Add your own credentials on the app nodes - n8n highlights exactly which ones need them.
- 3Activate. Run it once to test, then toggle Active. The automation is live.
What you'll learn
Production levelProduction-grade: idempotency, dead-letter handling, and reconciliation included.
- •Marking rows published only after the post succeeds
- •Moving data between Slack, Google Sheets and PostgreSQL in a single run
- •Normalising timestamps before anything downstream compares them
Every node carries its own documentation on the canvas, plus notes explaining why the architecture was built this way, a credential setup guide, troubleshooting, and three practice exercises. Sample data comes pinned to the trigger, so you can hit Execute and watch data flow before connecting a single account.
Common questions
What exactly do I get?
The complete, ready-to-import n8n workflow as a JSON file, delivered instantly after payment. Import it into your own n8n (cloud or self-hosted), add your credentials, and it runs.
How do I import it into n8n?
In n8n, open Workflows, click the three-dot menu, choose “Import from File”, and select the downloaded JSON. Then connect your own app credentials on the highlighted nodes.
Do I need anything else for it to work?
You need your own n8n instance and accounts/credentials for the apps this workflow connects to (Slack, Google Sheets, HTTP / REST API, PostgreSQL). No coding is required.
What if it doesn't work for me?
If the file is faulty, won't import, or isn't as described, contact us within 7 days and we'll fix it or refund you - see our refund policy.
Can I modify or resell it?
You can freely adapt and use it in your own or your clients' projects. Reselling or redistributing the template file itself is not permitted.
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