Skip to content
ExpertProfessionalLead GenerationScheduled trigger19 nodes

Follow up: PostgreSQL for outreach

Runs on a schedule across PostgreSQL, Slack and Google Sheets, walks the list in batches, pausing between them, then branches on the check before anything is written. Built for outreach, around a "Read Pending Queue (PostgreSQL)" step, in 19 documented nodes.

Follow up with leads with PostgreSQL and Slack hands-free. An original, ready-to-import n8n workflow built around the 'Drip Sequence' pattern for sales & CRM. It runs on a schedule and orchestrates 19 nodes across PostgreSQL, Slack, 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. The result is a hands-off process that just works.

Key benefits

  • Keeps PostgreSQL and Slack in step for outreach, without anyone re-typing a row
  • A failed PostgreSQL or Slack call is retried rather than dropped, at any of the 19 nodes in this outreach build
  • The pause before PostgreSQL is durable — a outreach run survives a restart
  • Batches the work so PostgreSQL rate limits never break a outreach run
  • Every outreach run leaves an audit row behind, alongside PostgreSQL

Use cases

  • Teams keeping PostgreSQL and Slack aligned by hand for outreach
  • Outreach sequences that run over days and must survive a restart before PostgreSQL
  • A backlog too large to push into PostgreSQL in one pass, across 19 nodes
  • Outreach work where "Read Pending Queue (PostgreSQL)" is still a manual step before PostgreSQL

Integrations

PostgreSQLSlackGoogle SheetsHTTP / REST APIGoogle Gemini

Workflow preview (19 nodes)

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

Hourly ScheduleSchedule TriggerRead Pending Queue (Pos…PostgresStamp & Shape LeadSetPayload Valid?IfRecord Rejected InputPostgresWork in BatchesSplit In BatchesProcess Batch ItemHttp RequestRespect Rate LimitsWaitAggregate Batch ResultsAggregateMark Completed in Googl…Google SheetsSave Execution MetadataExecution DataSort Leads Newest FirstSortGuard Non-Empty emailFilterStamp Processing TimeDate TimeSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to SlackSlackCapture Failure ContextSetEscalate Failure to Sla…Slack

What's inside (19 nodes)

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

AggregateDate TimeExecution DataFilterGoogle SheetsHttp RequestIfPostgresSchedule TriggerSetSlackSortSplit 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

Advanced level

Adds branching depth and audit logging on top of the core pattern.

  • Sequencing multi-day sends with durable Wait nodes
  • Checking for conversion before every step so the drip stops
  • Segmenting the audience up front

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, Slack, 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.