Automate inventory management with Google Sheets & Gmail

✅ What problem does this workflow solve?

Managing inventory manually requires constant monitoring, manual purchase order creation, and back-and-forth communication with suppliers.
This workflow automates the entire inventory replenishment cycle — from detecting low-stock items to generating purchase orders and emailing suppliers automatically.
It ensures accurate stock levels, reduces manual work, and prevents stockouts.

💡 Main Use Cases

• 🔍 Identify low-stock items automatically based on thresholds
• 📊 Perform scheduled daily inventory checks
• 🧾 Auto-generate purchase orders for items that need replenishment
• ✉️ Email purchase orders directly to suppliers
• 📄 Update Google Sheets with order and inventory tracking information

🧠 How It Works – Step-by-Step

1. ⏰ Scheduled Trigger

The workflow runs automatically every day (or any chosen interval) to begin inventory checks without manual involvement.

2. 📉 Get Low-Stock Items

Reads your Google Sheets inventory file to identify items where current stock < minimum stock threshold.

3. 🧮 Process Each Low-Stock Item

For every item below the # Header 1threshold:

• Calculates the required order quantity
• Generates purchase order details, including
  • SKU / Item Name
  • Quantity Needed
  • Supplier Email
  • Stock Levels

4. 🔀 Conditional Flow

For each low-stock item:

Purchase Order Actions

• Creates a purchase order email using the generated details
• Sends the PO automatically to the supplier via Gmail
• Logs the PO entry in Google Sheets with:
  • Item Details
  • Order Quantity
  • Supplier
  • Timestamp
  • Status (“PO Sent”)

5. 📢 Notifications

Sends purchase order emails directly to suppliers.
(Optional) Internal notifications (Slack/email) can be added for procurement visibility.

📊 Logging & Reporting

All actions — PO creation, stock levels, supplier emails — are written back to Google Sheets for complete auditability and reporting.

👤 Who can use this?

Perfect for:

• Retail & eCommerce businesses
• Warehouse teams
• Procurement & purchasing departments
• Manufacturing operations
• Any business managing physical inventory

🚀 Benefits

• ⏱ Automated stock monitoring
• 📦 Prevents stockouts
• ✉️ Eliminates manual PO creation
• 📚 Creates a complete audit trail
• 🧠 Smart, rule-based reorder logic