n8n Shopify Low Stock Email Alerts (SMTP) Workflow

Never guess your Shopify inventory again—get automated low-stock email alerts

This n8n Shopify Low Stock Email Alerts (SMTP) Workflow scans your full Shopify product catalog on a schedule, detects variants running low, and sends a clean HTML low-stock alert email via SMTP whenever any items fall below your configured threshold.

What this workflow does

• Runs every 12 hours using a scheduled trigger.
• Configures key settings: low-stock threshold, store name (optional), and the recipient email address.
• Fetches all products from Shopify using pagination.
• Extracts each product variant’s SKU and inventory quantity.
• Filters variants to keep only those with inventory below the threshold, then aggregates them into a single summary.
• If low-stock variants exist, the workflow builds an HTML table and sends the alert email using SMTP; if none exist, it ends with no action.

Use cases

• Detect low inventory across multiple Shopify products without manually checking the admin dashboard.
• Notify your fulfillment team so reorders happen before stock-outs impact sales.
• Give SaaS operators and automation engineers a reliable inventory monitoring workflow built directly in n8n.
• Use it as a lightweight alternative to complex inventory tooling when email notifications are enough.

Technical details

• Shopify integration: Shopify node with API credentials (permission to read products) and product selection.
• SMTP email sending: SMTP credentials for your mail server, plus a configured sender address.
• n8n nodes used: if, set, code, no op, filter, shopify.

Set it up once, then rely on scheduled Shopify low stock monitoring with email alerts that keep your operations in sync.