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AdvancedPremiumEmail AutomationScheduled trigger24 nodes

Send a metrics report: PostgreSQL

Runs on a schedule across PostgreSQL, Gmail and Google Sheets, summarises long text with an AI chain, then drops anything it has already handled. Built for drip campaigns, around a "Pull Fresh Items (API)" step, in 24 documented nodes.

Send a metrics report with PostgreSQL and Gmail end to end. An original, ready-to-import n8n workflow built around the 'Scheduled Digest' pattern for marketing & advertising. It runs on a schedule and orchestrates 24 nodes across PostgreSQL, Gmail, Google Sheets. 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. Your team sees the right data at the right time.

Key benefits

  • Keeps PostgreSQL and Gmail in step for drip campaigns, without anyone re-typing a row
  • Safe to re-run: records already in PostgreSQL or Gmail are skipped, across all 24 nodes of this drip-campaigns build
  • A failed PostgreSQL or Gmail call is retried rather than dropped, at any of the 24 nodes in this drip-campaigns build
  • Every drip-campaigns run leaves an audit row behind, alongside PostgreSQL
  • The drip-campaigns AI step is isolated from PostgreSQL, so models swap without touching the other 24 nodes

Use cases

  • Teams keeping PostgreSQL and Gmail aligned by hand for drip campaigns
  • Drip campaigns work where "Pull Fresh Items (API)" is still a manual step before PostgreSQL
  • Drip campaigns work that only reaches PostgreSQL on a schedule, when someone remembers to start it

Integrations

PostgreSQLGmailGoogle SheetsHTTP / REST APIGroq

Workflow preview (24 nodes)

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

Daily ScheduleSchedule TriggerPull Fresh Items (API)Http RequestNewest FirstSortTrim to Digest SizeLimitSummarize Content (AI)Chain SummarizationGroq Chat ModelLm Chat GroqPost Digest to GmailGmailArchive Digest in Postg…PostgresStamp Completion TimeDate TimePersist Run MetadataExecution DataEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetLoad Previous SnapshotPostgresCompute Drift vs Snapsh…CodeFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesSerialize Run Output (C…Convert To FileArchive Row SnapshotGoogle SheetsSummarize Run StatsSetAppend Audit Row (Googl…Google SheetsSend Summary to GmailGmailCapture Failure ContextSetEscalate Failure to Gma…GmailPark in Dead-Letter Que…Postgres

What's inside (24 nodes)

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

Chain SummarizationCodeConvert To FileDate TimeExecution DataGmailGoogle SheetsHttp RequestLimitLm Chat GroqPostgresRemove DuplicatesSchedule TriggerSetSort

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.

  • Summarizing and formatting a readable digest
  • Archiving each run for an audit trail
  • Moving data between Gmail, PostgreSQL and Google Sheets 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 (PostgreSQL, Gmail, Google Sheets, 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.