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Order processing with Google Sheets and Slack: inventory checks and alerts

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Order processing with Google Sheets and Slack: inventory checks and alerts preview
Open on n8n.io

Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

A cornerstone of your Order Management System, this workflow ensures seamless inventory control through fully automated stock checks, leading to a direct reduction in operational costs. It provides...

Best for

  • CRM automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.function, n8n-nodes-base.googlesheets, n8n-nodes-base.merge, n8n-nodes-base.if, n8n-nodes-base.stickynote, n8n-nodes-base.slack

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Satoshi.

Original n8n.io source

1.1 Workflow description

Title
Order processing with Google Sheets and Slack: inventory checks and alerts
Workflow name
Order processing with Google Sheets and Slack: inventory checks and alerts

Overview

A cornerstone of your Order Management System, this workflow ensures seamless inventory control through fully automated stock checks, leading to a direct reduction in operational costs. It provides real-time alerts to the responsible personnel, enabling proactive issue detection and resolution to eliminate the financial damages associated with unexpected stock-outs.

How it works

Order Webhook

Receives orders from external sources (e.g., website, form, or app) via API.

Check Order Request

Checks the validity of the order (e.g., complete product, valid customer details)

Check Inventory

Retrieve inventory information and compare it with the order request.

Notifications

  • Generate a notification to Slack for the manager indicating a successful order or an out-of-stock situation.

Logging

  • Log the process details to a Google Sheet for tracking.

Set up steps

Webhook

  • Create a JSON request with the following format to call the Webhook Url
{
  "id": "ORDER1001",
  "customer": {
    "name": "Customer",
    "email": "[email protected]"
  },
  "items": [
    {
      "sku": "SKU001",
      "quantity": 2,
      "name": "Product A",
      "price": 5000
    },
    {
      "sku": "SKU002",
      "quantity": 2,
      "name": "Product C",
      "price": 10000
    }
  ],
  "total": 30000
}
  • Define the greater than or less than conditions on the inventory level to enter the corresponding branches.

Google Sheet

  • Clone the file to your Google Drive. (WMS Data Demo)
  • Replace your credentials and connect.
  • Access permission must be granted to n8n.

Slack

  • Replace your credentials and connect.
  • A channel named "warehouse" needs to be prepared to receive notifications (if using a different name, you must update the Slack node).

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Order Webhook

Type / Role
n8n-nodes-base.webhook - webhook
Config choices
Version 1

Block 2 - Check Order

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 3 - Request Info

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 4 - Item and quantity

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 5 - Get Inventories

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 2

Block 6 - Mapping data

Type / Role
n8n-nodes-base.merge - merge
Config choices
Version 3.2

Block 7 - enough stock?

Type / Role
n8n-nodes-base.if - if
Config choices
Version 1

Block 8 - Create Invoice

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 9 - create data logs (success)

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 10 - create data logs (Stock shortage)

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 11 - Save logs

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 2

Block 12 - Sticky Note

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 13 - Slack notification (OK)

Type / Role
n8n-nodes-base.slack - slack
Config choices
Version 1

Block 14 - Slack notification (Stock shortage)

Type / Role
n8n-nodes-base.slack - slack
Config choices
Version 1

Block 15 - Sticky Note1

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 16 - Sticky Note2

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 17 - Sticky Note3

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 18 - Sticky Note4

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

3. Summary Table

Workflow Order processing with Google Sheets and Slack: inventory checks and alerts
Complexity advanced
Nodes 18
Categories CRM
Author Satoshi
Published 17 Nov 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/10899/10899.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Order processing with Google Sheets and Slack: inventory checks and alerts do?

A cornerstone of your Order Management System, this workflow ensures seamless inventory control through fully automated stock checks, leading to a direct reduction in operational costs. It provides...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your CRM use case.