Skip to content
AdvancedPremiumProject & Task ManagementForm trigger22 nodes

Approve requests: Gmail

Starts when someone submits the form across Gmail, PostgreSQL and Slack, pauses on a Wait node until it is time to continue, then branches on the check before anything is written. Built for task routing, around a "Prepare Approval Packet" step, in 22 documented nodes.

Approve requests with Gmail and PostgreSQL in real time. An original, ready-to-import n8n workflow built around the 'Approval Workflow' pattern for software development & devops. It starts from a form and orchestrates 22 nodes across Gmail, HTTP / REST API, PostgreSQL. Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. What used to take a morning now runs on its own.

Key benefits

  • Keeps Gmail and PostgreSQL in step for task routing, without anyone re-typing a row
  • Safe to re-run: records already in Gmail or PostgreSQL are skipped, across all 22 nodes of this task-routing build
  • A failed Gmail or PostgreSQL call is retried rather than dropped, at any of the 22 nodes in this task-routing build
  • Bad input stops the run for task routing instead of landing in Gmail
  • Branches rejoin before Gmail, so a task-routing run reports once rather than 22 times

Use cases

  • Teams keeping Gmail and PostgreSQL aligned by hand for task routing
  • Task routing sequences that run over days and must survive a restart before Gmail
  • Intake checked for completeness before it is stored in Gmail, for task routing
  • Task routing work where "Prepare Approval Packet" is still a manual step before Gmail

Integrations

GmailHTTP / REST APIPostgreSQLSlackGoogle Sheets

Workflow preview (22 nodes)

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

New Task Form SubmissionForm TriggerRequired Fields Present?IfAbort — Malformed InputStop And ErrorPrepare Approval PacketSetRequest Approval via Sl…SlackHold for DecisionWaitApproved?IfExecute Approved Action…Http RequestRecord Decline + Notify…GmailJoin Decision PathsMergeFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetLoad Previous SnapshotPostgresCompute Drift vs Snapsh…CodeSummarize Run StatsSetAppend Audit Row (Postg…PostgresSend Summary to GmailGmailCapture Failure ContextSetEscalate Failure to Gma…GmailPark 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.

CodeForm TriggerGmailGoogle SheetsHttp RequestIfMergePostgresRemove DuplicatesSetSlackStop And ErrorWait

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.

  • Pausing a workflow on a Wait node until a human decides
  • Embedding a resume URL so approving is one click
  • Branching cleanly on approve versus decline

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 (Gmail, HTTP / REST API, PostgreSQL, Slack, …). 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.