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ExpertEnterpriseE-commerce AutomationWebhook trigger30 nodes

Broadcast the team on new events: Notion & Slack

Fires the moment a webhook arrives across Notion, Slack and Google Sheets, routes each kind of record down its own branch, then drops anything it has already handled. Built for inventory, around a "Compute HMAC Signature" step, in 30 documented nodes.

Broadcast the team on new events with Notion end to end. An original, ready-to-import n8n workflow built around the 'Event Notification' pattern for e-commerce & retail. It fires on a webhook and orchestrates 30 nodes across Notion, HTTP / REST API, Slack. Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. Nothing slips through the cracks.

Key benefits

  • Keeps Notion and Slack in step for inventory, without anyone re-typing a row
  • Safe to re-run: records already in Notion or Slack are skipped, across all 30 nodes of this inventory build
  • A failed Notion or Slack call is retried rather than dropped, at any of the 30 nodes in this inventory build
  • Branches rejoin before Notion, so a inventory run reports once rather than 30 times
  • Every inventory run leaves an audit row behind, alongside Notion

Use cases

  • Teams keeping Notion and Slack aligned by hand for inventory
  • Pushing inventory events into Notion and Slack the moment they land, not on the next poll
  • Inventory work where "Compute HMAC Signature" is still a manual step before Notion
  • Inventory work that only reaches Notion when a webhook arrives, when someone remembers to start it

Integrations

NotionHTTP / REST APISlackGoogle Sheets

Workflow preview (30 nodes)

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

Receive Inbound WebhookWebhookCompute HMAC SignatureCryptoSignature Valid?IfReject (HTTP 401)Respond To WebhookMap to Canonical SchemaSetAcknowledge Fast (HTTP …Respond To WebhookRoute by Event KindSwitchHandle 'opened' → NotionNotionHandle 'closed' → Forwa…Http RequestHandle 'reopened' → For…Http RequestLog Unrecognized KindNotionConsolidate HandlingMergeStamp Completion TimeDate TimePersist Run MetadataExecution DataSerialize Run Output (C…Convert To FileArchive Row SnapshotGoogle SheetsLoad Previous SnapshotGoogle SheetsCompute Drift vs Snapsh…CodeOffload to Post-Process…Execute WorkflowRecord Sub-workflow Res…Execution DataEnrich with Reference D…Http RequestFold In Enrichment Fiel…SetFingerprint for Idempot…CodeDrop Already-Processed …Remove DuplicatesSummarize Run StatsSetAppend Audit Row (Notio…NotionSend Summary to SlackSlackCapture Failure ContextSetEscalate Failure to Sla…SlackPark in Dead-Letter Que…Notion

What's inside (30 nodes)

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

CodeConvert To FileCryptoDate TimeExecute WorkflowExecution DataGoogle SheetsHttp RequestIfMergeNotionRemove DuplicatesRespond To WebhookSetSlackSwitchWebhook

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

Architect level

The deepest tier - sub-workflow delegation, state snapshots, and full observability.

  • Reacting to an event and notifying the right channel
  • Keeping alert volume low enough to stay meaningful
  • Moving data between Notion, Google Sheets 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 (Notion, HTTP / REST API, Slack, Google Sheets). 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.