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AdvancedPremiumCRM AutomationScheduled trigger22 nodes

Re-engage upcoming appointments with Slack for follow-ups

Runs on a schedule across Slack, Google Sheets and Twilio, pauses on a Wait node until it is time to continue, then branches on the check before anything is written. Built for follow-ups, around a "Keep Valid Contacts" step, in 22 documented nodes.

Re-engage upcoming appointments with Google Drive and Twilio on autopilot. An original, ready-to-import n8n workflow built around the 'Reminders & Follow-ups' pattern for sales & CRM. It runs on a schedule and orchestrates 22 nodes across Slack, Google Sheets, Twilio. 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 follow-ups, without anyone re-typing a row
  • Safe to re-run: records already in Slack or Google Sheets are skipped, across all 22 nodes of this follow-ups build
  • A failed Slack or Google Sheets call is retried rather than dropped, at any of the 22 nodes in this follow-ups build
  • The pause before Slack is durable — a follow-ups run survives a restart
  • Every follow-ups run leaves an audit row behind, alongside Slack

Use cases

  • Teams keeping Slack and Google Sheets aligned by hand for follow-ups
  • Follow-ups sequences that run over days and must survive a restart before Slack
  • Follow-ups work where "Keep Valid Contacts" is still a manual step before Slack
  • Follow-ups work that only reaches Slack on a schedule, when someone remembers to start it

Integrations

SlackGoogle SheetsTwilioHTTP / REST APIGoogle Drive

Workflow preview (22 nodes)

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

Daily ScheduleSchedule TriggerKeep Valid ContactsFilterSlot Free?IfRecord BookingGoogle SheetsSend Confirmation (Slac…SlackPropose Alternative Slo…SlackHold Until Reminder TimeWaitSend Reminder (Slack)SlackStamp Completion TimeDate TimePersist Run MetadataExecution DataFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetSerialize Run Output (C…Convert To FileArchive Copy to Google …Google DriveSummarize Run StatsSetAppend Audit Row (Googl…Google SheetsSend Summary to TwilioTwilioCapture Failure ContextSetEscalate Failure to Twi…TwilioPark in Dead-Letter Que…Google Sheets

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.

CodeConvert To FileDate TimeExecution DataFilterGoogle DriveGoogle SheetsHttp RequestIfRemove DuplicatesSchedule TriggerSetSlackTwilioWait

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

Production level

Production-grade: idempotency, dead-letter handling, and reconciliation included.

  • 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, Google Sheets, Twilio, 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.