Auto-post social posts with Slack for captions
Runs on a schedule across Slack, Google Sheets and MySQL, walks the list in batches, pausing between them, then rolls the rows up into a few numbers. Built for captions, around a "Read Content Calendar (MySQL)" step, in 22 documented nodes.
Auto-post social posts with MySQL and Slack on autopilot. An original, ready-to-import n8n workflow built around the 'Social Scheduler' pattern for content creation & media. It runs on a schedule and orchestrates 22 nodes across Slack, Google Sheets, MySQL. 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 Google Sheets in step for captions, without anyone re-typing a row
- ✓A failed Slack or Google Sheets call is retried rather than dropped, at any of the 22 nodes in this captions build
- ✓The pause before Slack is durable — a captions run survives a restart
- ✓Batches the work so Slack rate limits never break a captions run
- ✓Every captions run leaves an audit row behind, alongside Slack
Use cases
- →Teams keeping Slack and Google Sheets aligned by hand for captions
- →Captions sequences that run over days and must survive a restart before Slack
- →A backlog too large to push into Slack in one pass, across 22 nodes
- →Captions work where "Read Content Calendar (MySQL)" is still a manual step before Slack
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.
- •Reading a content calendar and publishing only what is due
- •Spacing posts with a batch loop and Wait to respect rate limits
- •Walking a list in batches instead of firing everything at once
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, MySQL, HTTP / REST API). 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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