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ExpertProfessionalDocument ProcessingWebhook trigger20 nodes

Digest long emails: Google Sheets + AI agent

Fires the moment a webhook arrives across Google Sheets and Gmail, hands the decision to an AI agent with its own tools, then branches on the check before anything is written. Built for summarization, around a "Stamp & Shape Document" step, in 20 documented nodes.

Digest long emails with Google Sheets and Gmail on autopilot. An original, ready-to-import n8n workflow built around the 'AI Summarize & Route' pattern for legal & compliance. It fires on a webhook and orchestrates 20 nodes across Google Sheets, Gmail, HTTP / REST API. 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 Gmail in step for summarization, without anyone re-typing a row
  • A failed Google Sheets or Gmail call is retried rather than dropped, at any of the 20 nodes in this summarization build
  • Branches rejoin before Google Sheets, so a summarization run reports once rather than 20 times
  • The summarization AI step is isolated from Google Sheets, so models swap without touching the other 20 nodes
  • Pinned sample data ships with it — run all 20 nodes for summarization before wiring Google Sheets

Use cases

  • Teams keeping Google Sheets and Gmail aligned by hand for summarization
  • Summarization work that needs a judgement call per item before it reaches Google Sheets
  • Pushing summarization events into Google Sheets and Gmail the moment they land, not on the next poll
  • Summarization work where "Stamp & Shape Document" is still a manual step before Google Sheets

Integrations

Google SheetsGmailHTTP / REST APIAnthropic

Workflow preview (20 nodes)

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

Receive Inbound WebhookWebhookStamp & Shape DocumentSetPayload Valid?IfRecord Rejected InputGoogle SheetsReason & Act (AI Agent)AgentAnthropic Chat ModelLm Chat AnthropicRun CalculationsTool CalculatorSearch Reference WikiTool WikipediaLookup API DataTool Http RequestConversation MemoryMemory Buffer WindowShape Agent OutputSetConfident Enough?IfDeliver Answer + Log to…Google SheetsEscalate to Human QueueGmailJoin OutcomesMergeSummarize Run StatsSetAppend Audit Row (Googl…Google SheetsSend Summary to GmailGmailCapture Failure ContextSetEscalate Failure to Gma…Gmail

What's inside (20 nodes)

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

AgentGmailGoogle SheetsIfLm Chat AnthropicMemory Buffer WindowMergeSetTool CalculatorTool Http RequestTool WikipediaWebhook

Agent tools included (3)

An AI Agent is only as capable as the tools wired into it. These are read from the template's own graph — every one is a real node in the file you download.

  • Lookup API Data · HTTP request
  • Run Calculations · Calculator
  • Search Reference Wiki · Wikipedia

Conversation memory is attached, so the agent carries earlier turns of a session.

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.

  • Routing classified output into separate action branches
  • Rejoining parallel branches with Merge so the run reports once
  • Moving data between Google Sheets and Gmail 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, Gmail, 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.