Auto-post the content calendar with Slack & PostgreSQL
Runs on a schedule across Slack and PostgreSQL, pauses on a Wait node until it is time to continue, then branches on the check before anything is written. Built for captions, around a "Stamp & Shape Draft" step, in 17 documented nodes.
Auto-post the content calendar with PostgreSQL and Slack end to end for Captions. An original, ready-to-import n8n workflow built around the 'Social Scheduler' pattern for content creation & media. It runs on a schedule and orchestrates 17 nodes across Slack, PostgreSQL. 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. The result is a hands-off process that just works.
Key benefits
- ✓Keeps Slack and PostgreSQL in step for captions, without anyone re-typing a row
- ✓A failed Slack or PostgreSQL call is retried rather than dropped, at any of the 17 nodes in this captions build
- ✓Branches rejoin before Slack, so a captions run reports once rather than 17 times
- ✓The pause before Slack is durable — a captions run survives a restart
- ✓Pinned sample data ships with it — run all 17 nodes for captions before wiring Slack
Use cases
- →Teams keeping Slack and PostgreSQL aligned by hand for captions
- →Captions sequences that run over days and must survive a restart before Slack
- →Captions work where "Stamp & Shape Draft" is still a manual step before Slack
- →Captions work that only reaches Slack on a schedule, when someone remembers to start it
Integrations
Workflow preview (17 nodes)
The template's actual node layout and connections. Node parameters and credential slots unlock with the download.
What's inside (17 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
Advanced levelAdds branching depth and audit logging on top of the core pattern.
- •Reading a content calendar and publishing only what is due
- •Moving data between PostgreSQL and Slack in a single run
- •Splitting one run into branches and merging the results back
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, 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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