Skip to content
ExpertEnterpriseContent GenerationScheduled trigger31 nodes

Generate social posts with Slack for newsletters

Runs on a schedule across Slack, Google Sheets and Notion, runs the text through an AI chain, then reads the feed and keeps only what is new. Built for newsletters, around a "Read Source Feed" step, in 31 documented nodes.

Generate social posts with PostgreSQL and Slack at scale. An original, ready-to-import n8n workflow built around the 'Content Generation' pattern for content creation & media. It runs on a schedule and orchestrates 31 nodes across Slack, Google Sheets, Notion. 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 newsletters, without anyone re-typing a row
  • Safe to re-run: records already in Slack or Google Sheets are skipped, across all 31 nodes of this newsletters build
  • A failed Slack or Google Sheets call is retried rather than dropped, at any of the 31 nodes in this newsletters build
  • Every newsletters run leaves an audit row behind, alongside Slack
  • The newsletters AI step is isolated from Slack, so models swap without touching the other 31 nodes

Use cases

  • Teams keeping Slack and Google Sheets aligned by hand for newsletters
  • Newsletters work where "Read Source Feed" is still a manual step before Slack
  • Newsletters work that only reaches Slack on a schedule, when someone remembers to start it

Integrations

SlackGoogle SheetsNotionHTTP / REST APIPostgreSQLGroq

Workflow preview (31 nodes)

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

Hourly ScheduleSchedule TriggerRead Source FeedRss Feed ReadSkip Already-Seen PostsRemove DuplicatesKeep Top StoriesLimitRewrite for Our Audienc…Chain LlmGroq Chat ModelLm Chat GroqPublish to SlackSlackLog Published Posts (Go…Google SheetsLoad Previous SnapshotGoogle SheetsCompute Drift vs Snapsh…CodeFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesSerialize Run Output (C…Convert To FileArchive Row SnapshotNotionEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetStamp Completion TimeDate TimePersist Run MetadataExecution DataOffload to Post-Process…Execute WorkflowRecord Sub-workflow Res…Execution DataTag Pipeline MetadataSetStamp Processing TimeDate TimeSort Drafts Newest FirstSortSave Execution MetadataExecution DataCap Batch VolumeLimitSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to SlackSlackCapture Failure ContextSetEscalate Failure to Sla…SlackPark in Dead-Letter Que…Notion

What's inside (31 nodes)

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

Chain LlmCodeConvert To FileDate TimeExecute WorkflowExecution DataGoogle SheetsHttp RequestLimitLm Chat GroqNotionPostgresRemove DuplicatesRss Feed ReadSchedule 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

Architect level

The deepest tier - sub-workflow delegation, state snapshots, and full observability.

  • Chaining a writer pass and a separate critic pass for better output
  • Moving data between Slack, Google Sheets and Notion 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, Notion, 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.

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.