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AdvancedPremiumDocument ProcessingWebhook trigger22 nodes

Summarize documents: Google Sheets for invoices

Fires the moment a webhook arrives across Google Sheets, Slack and Telegram, scores the sentiment of every message, then branches on the check before anything is written. Built for invoices, around a "Stamp & Shape Document" step, in 22 documented nodes.

Summarize documents with Google Sheets and Telegram. An original, ready-to-import n8n workflow built around the 'AI Summarize & Route' pattern for legal & compliance. It fires on a webhook and orchestrates 22 nodes across Google Sheets, Slack, Telegram. 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 Google Sheets and Slack in step for invoices, without anyone re-typing a row
  • ✓A failed Google Sheets or Slack call is retried rather than dropped, at any of the 22 nodes in this invoices build
  • ✓Branches rejoin before Google Sheets, so a invoices run reports once rather than 22 times
  • ✓Every invoices run leaves an audit row behind, alongside Google Sheets
  • ✓Fans the same result out to Telegram in the same run, for invoices

Use cases

  • →Teams keeping Google Sheets and Slack aligned by hand for invoices
  • →Pushing invoices events into Google Sheets and Slack the moment they land, not on the next poll
  • →Invoices work where "Stamp & Shape Document" is still a manual step before Google Sheets
  • →Invoices work that only reaches Google Sheets when a webhook arrives, when someone remembers to start it

Integrations

Google SheetsSlackTelegramHTTP / REST APIOpenAI

Workflow preview (22 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 SheetsDetect SentimentSentiment AnalysisOpenAI Chat ModelLm Chat Open AiEscalate Negative — Tel…TelegramLog Neutral FeedbackGoogle SheetsThank the SenderTelegramCollect All OutcomesMergeLoad Previous SnapshotGoogle SheetsCompute Drift vs Snapsh…CodeStamp Completion TimeDate TimePersist Run MetadataExecution DataEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetSummarize Run StatsSetAppend Audit Row (Googl…Google SheetsSend 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.

CodeDate TimeExecution DataGoogle SheetsHttp RequestIfLm Chat Open AiMergeSentiment AnalysisSetSlackTelegramWebhook

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.

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

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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.