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IntermediateProfessionalSocial Media AutomationScheduled trigger16 nodes

Draft newsletters with Slack for listening

Runs on a schedule across Slack and PostgreSQL, summarises long text with an AI chain. Built for listening, around a "Read Recent from PostgreSQL" step, in 16 documented nodes.

Draft newsletters with PostgreSQL and Slack 24/7 for Listening. An original, ready-to-import n8n workflow built around the 'Content Generation' pattern for marketing & advertising. It runs on a schedule and orchestrates 16 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 listening, without anyone re-typing a row
  • A failed Slack or PostgreSQL call is retried rather than dropped, at any of the 16 nodes in this listening build
  • Every listening run leaves an audit row behind, alongside Slack
  • The listening AI step is isolated from Slack, so models swap without touching the other 16 nodes
  • Pinned sample data ships with it — run all 16 nodes for listening before wiring Slack

Use cases

  • Teams keeping Slack and PostgreSQL aligned by hand for listening
  • Listening work where "Read Recent from PostgreSQL" is still a manual step before Slack
  • Listening work that only reaches Slack on a schedule, when someone remembers to start it

Integrations

SlackPostgreSQLAnthropic

Workflow preview (16 nodes)

The template's actual node layout and connections. Node parameters and credential slots unlock with the download.

Daily ScheduleSchedule TriggerRead Recent from Postgr…PostgresNewest FirstSortTrim to Digest SizeLimitSummarize Content (AI)Chain SummarizationAnthropic Chat ModelLm Chat AnthropicRender as HTMLMarkdownPost Digest to SlackSlackArchive Digest in Postg…PostgresAlign Field NamesRename KeysSave Execution MetadataExecution DataSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to SlackSlackCapture Failure ContextSetEscalate Failure to Sla…Slack

What's inside (16 nodes)

A look at the node types this workflow uses. No purchase required — full parameters and credentials are yours after you buy.

Chain SummarizationExecution DataLimitLm Chat AnthropicMarkdownPostgresRename KeysSchedule TriggerSetSlackSort

From download to running in 3 steps

  1. 1
    Import. In n8n, open Workflows → menu → “Import from File” and pick the downloaded JSON.
  2. 2
    Connect. Add your own credentials on the app nodes - n8n highlights exactly which ones need them.
  3. 3
    Activate. Run it once to test, then toggle Active. The automation is live.

What you'll learn

Advanced level

Adds branching depth and audit logging on top of the core pattern.

  • Chaining a writer pass and a separate critic pass for better output
  • Converting markdown to HTML for delivery
  • Moving data between PostgreSQL and Slack in a single run

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.

Original n8n workflow template created and owned by WorkflowCrate. After purchase you receive the ready-to-import JSON file and a license to use and adapt it in your own projects.