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ExpertEnterpriseEmail AutomationScheduled trigger33 nodes

Re-engage upcoming appointments: Slack, Notion & PostgreSQL

Runs on a schedule across Slack, Notion and PostgreSQL, pauses on a Wait node until it is time to continue, then branches on the check before anything is written. Built for drip campaigns, around a "Keep Valid Emails" step, in 33 documented nodes.

Re-engage upcoming appointments with PostgreSQL and Twilio 24/7. An original, ready-to-import n8n workflow built around the 'Reminders & Follow-ups' pattern for marketing & advertising. It runs on a schedule and orchestrates 33 nodes across Slack, Notion, PostgreSQL. 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 Notion in step for drip campaigns, without anyone re-typing a row
  • Safe to re-run: records already in Slack or Notion are skipped, across all 33 nodes of this drip-campaigns build
  • A failed Slack or Notion call is retried rather than dropped, at any of the 33 nodes in this drip-campaigns build
  • The pause before Slack is durable — a drip-campaigns run survives a restart
  • Every drip-campaigns run leaves an audit row behind, alongside Slack

Use cases

  • Teams keeping Slack and Notion aligned by hand for drip campaigns
  • Drip campaigns sequences that run over days and must survive a restart before Slack
  • Drip campaigns work where "Keep Valid Emails" is still a manual step before Slack
  • Drip campaigns work that only reaches Slack on a schedule, when someone remembers to start it

Integrations

SlackNotionPostgreSQLHTTP / REST APITwilio

Workflow preview (33 nodes)

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

Daily ScheduleSchedule TriggerKeep Valid EmailsFilterSlot Free?IfRecord BookingNotionSend Confirmation (Slac…SlackPropose Alternative Slo…SlackHold Until Reminder TimeWaitSend Reminder (Slack)SlackEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetSerialize Run Output (C…Convert To FileArchive Row SnapshotNotionLoad Previous SnapshotPostgresCompute Drift vs Snapsh…CodeOffload to Post-Process…Execute WorkflowRecord Sub-workflow Res…Execution DataFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesStamp Completion TimeDate TimePersist Run MetadataExecution DataAlign Field NamesRename KeysGuard Non-Empty fromFilterSave Execution MetadataExecution DataStamp Processing TimeDate TimeTag Pipeline MetadataSetSort Emails Newest FirstSortCap Batch VolumeLimitSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to TwilioTwilioCapture Failure ContextSetEscalate Failure to Sla…SlackPark in Dead-Letter Que…Notion

What's inside (33 nodes)

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

CodeConvert To FileDate TimeExecute WorkflowExecution DataFilterHttp RequestIfLimitNotionPostgresRemove DuplicatesRename KeysSchedule TriggerSetSlackSortTwilioWait

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.

  • Scheduling time-based follow-ups that survive restarts
  • Computing due dates and windows from timestamps
  • Exiting the sequence when the task is already done

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, Notion, PostgreSQL, 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.