# Track inventory levels with Gmail and Slack: n8n workflow > Started by another system calling it, and works across Gmail and Slack. 25 steps, 2 branches: large, and worth reading before you trust it with anything live. Source: https://millionrounds.com/workflow/track-inventory-levels-with-gmail-and-slack (Millionrounds; every figure on the page links to its filing or article) [Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library) # Track inventory levels with Gmail and Slack Started by another system calling it, and works across Gmail and Slack. 25 steps, 2 branches: large, and worth reading before you trust it with anything live. Large [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ftrack-inventory-levels-with-gmail-and-slack) **25 steps** Large: read it before trusting it with anything live **2** Branches: places the flow splits **0** Loops or waits **2** Services it connects to ## The flow Starts it 4 Logic 13 Service 8 The steps in the order they run, from what starts it. - 1 **Webhook - Inventory Movement** Webhook *Starts it* - 2 **Error Trigger** Error trigger *Starts it* - 3 **Validate Movement** Code *Logic* - 4 **Format Error** Code *Logic* - 5 **IF - Valid Movement** If *Logic* - 6 **Slack - Error Alert** Slack *Service* - 7 **Prepare API Body** Code *Logic* - 8 **Format Validation Error** Code *Logic* - 9 **API - Record Movement** Http Request *Service* - 10 **Respond - Validation Error** Respond To Webhook *Starts it* - 11 **API - Get Current Stock** Http Request *Service* - 12 **Check Stock Levels** Code *Logic* - 13 **Alert Router** Switch *Logic* - 14 **Format Critical Alert** Code *Logic* - 15 **Format Urgent Alert** Code *Logic* - 16 **Format Warning Alert** Code *Logic* - 17 **No Alert Needed** No Op *Logic* - 18 **Slack - Critical Alert** Slack *Service* - 19 **Slack - Urgent Alert** Slack *Service* - 20 **Slack - Warning Alert** Slack *Service* - 21 **Prepare Audit Entry** Code *Logic* - 22 **Email - Critical Alert** Gmail *Service* - 23 **API - Log Audit Trail** Http Request *Service* - 24 **Format Success Response** Code *Logic* - 25 **Respond - Success** Respond To Webhook *Starts it* ## How it's built - **Starts on:** Another system calling it - **Steps:** 25, with 2 branches - **Size:** Large: read it before trusting it with anything live - **Connects to:** Gmail, Slack - **Model:** None. This is plumbing, not judgement ## Questions What does it need to run? An n8n account, plus your own Gmail and Slack accounts. You connect your own accounts after importing it; none are included. What starts it? It starts on another system calling it. Does it use AI? No. Every step is fixed logic or a call to a service, so it does the same thing every time. How long does it take to set up? Take your time. At 25 steps it is large: read it before trusting it with anything live. How do I import it? Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts. **Before you run it** Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 25 steps before you point it at anything that matters. ## Run it in n8n - **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n) - **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ftrack-inventory-levels-with-gmail-and-slack) - **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts. Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind. ## Connects to Each opens the other workflows that use it. [Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Slack](https://millionrounds.com/workflows?service=Slack#library) ## Workflows like it Also alerts and monitoring, with the same services where possible, closest in size first. - [**Monitor HTTP endpoints and send state-change alerts** 25 steps · Google Sheets, Slack](https://millionrounds.com/workflow/monitor-http-endpoints-and-send-state-change-alerts) - [**Employee time tracking system with OpenAI and Gmail** 25 steps · calls a model · Gmail, n8n data table](https://millionrounds.com/workflow/employee-time-tracking-system-with-openai-and-gmail) - [**Monitor Cloudflare incidents and alert with Slack and Telegram** 25 steps · calls a model · Google Sheets, Jira](https://millionrounds.com/workflow/monitor-cloudflare-incidents-and-alert-with-slack-and-telegr) - [**Monitor Clutch categories for new agencies with BrowserAct** 25 steps · calls a model · Google Sheets, Slack](https://millionrounds.com/workflow/monitor-clutch-categories-for-new-agencies-with-browseract) - [**AI-Powered WhatsApp Business Assistant with Claude** 24 steps · Google Sheets, Slack](https://millionrounds.com/workflow/ai-powered-whatsapp-business-assistant-with-claude) - [**Automate multi-step onboarding with Google Sheets and Gmail** 26 steps · Gmail, Google Sheets](https://millionrounds.com/workflow/automate-multi-step-onboarding-with-google-sheets-and-gmail)