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ExpertPremiumEmail AutomationScheduled trigger22 nodes

Follow up with Google Sheets and PostgreSQL

Runs on a schedule across Google Sheets, PostgreSQL and Slack, walks the list in batches, pausing between them, then branches on the check before anything is written. Built for auto-responders, around a "Read Pending Queue (Google Sheets)" step, in 22 documented nodes.

Follow up with subscribers with PostgreSQL and Slack at scale. An original, ready-to-import n8n workflow built around the 'Drip Sequence' pattern for marketing & advertising. It runs on a schedule and orchestrates 22 nodes across Google Sheets, PostgreSQL, Slack. 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 Google Sheets and PostgreSQL in step for auto-responders, without anyone re-typing a row
  • A failed Google Sheets or PostgreSQL call is retried rather than dropped, at any of the 22 nodes in this auto-responders build
  • The pause before Google Sheets is durable — a auto-responders run survives a restart
  • Batches the work so Google Sheets rate limits never break a auto-responders run
  • Every auto-responders run leaves an audit row behind, alongside Google Sheets

Use cases

  • Teams keeping Google Sheets and PostgreSQL aligned by hand for auto-responders
  • Auto-responders sequences that run over days and must survive a restart before Google Sheets
  • A backlog too large to push into Google Sheets in one pass, across 22 nodes
  • Auto-responders work where "Read Pending Queue (Google Sheets)" is still a manual step before Google Sheets

Integrations

Google SheetsPostgreSQLSlackHTTP / REST APIGroq

Workflow preview (22 nodes)

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

Daily ScheduleSchedule TriggerRead Pending Queue (Goo…Google SheetsStamp & Shape EmailSetPayload Valid?IfRecord Rejected InputGoogle SheetsWork in BatchesSplit In BatchesProcess Batch ItemHttp RequestRespect Rate LimitsWaitAggregate Batch ResultsAggregateMark Completed in Postg…PostgresEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetLoad Previous SnapshotPostgresCompute Drift vs Snapsh…CodeStamp Completion TimeDate TimePersist Run MetadataExecution DataSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to SlackSlackCapture Failure ContextSetEscalate Failure to Sla…SlackPark 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.

AggregateCodeDate TimeExecution DataGoogle SheetsHttp RequestIfPostgresSchedule TriggerSetSlackSplit In BatchesWait

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.

  • Sequencing multi-day sends with durable Wait nodes
  • Checking for conversion before every step so the drip stops
  • Moving data between Google Sheets, 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 (Google Sheets, PostgreSQL, Slack, 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.