Shopify Flow/Inventory & Restock/How to Get Email Alerts for Low Product Variant Inventory
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How to Get Email Alerts for Low Product Variant Inventory

Automate internal email notifications instantly when any product variant's inventory dips below your critical threshold, ensuring you never miss a restock opportunity.

The Problem

Running out of stock unexpectedly leads to missed sales, unhappy customers, and rushed, expensive restock orders. Manually monitoring dozens or hundreds of product variants is a tedious time sink, often leading to crucial items going out of stock before you can react, costing you revenue and customer loyalty.

What This Automation Solves

This Flow proactively solves the low-stock headache. When a 'Product variant inventory quantity changed' trigger fires, a 'Check inventory threshold' condition immediately evaluates if the new stock level is at or below your defined low-stock point. If it is, an 'Send internal email' action dispatches an instant notification to your team, allowing swift action.

When to Use This Automation

  • For fast-selling items you need to restock quickly to avoid stockouts.
  • To notify your purchasing manager when a supplier order is due soon.
  • Before running a sale or promotion to prevent overselling popular products.

Workflow

  1. Trigger

    Step 1

    Starts when a product variant's inventory quantity changes

  2. Condition

    Step 2

    Condition checking if inventory is at or below the low-stock threshold

  3. Action

    Step 3

    Send email notifying that the variant inventory is low

Step-by-Step Setup

  1. 1

    Set the trigger to 'Product variant inventory quantity changed'.

  2. 2

    Add a 'Condition' to check if the variant's 'Inventory quantity' is less than or equal to your chosen low-stock threshold (e.g., 5, 10, or 20 units).

  3. 3

    Add an 'Action' to 'Send internal email' to your operations or purchasing team, including variant name, SKU, and current quantity in the email body.

Related Questions

Can I set different low-stock thresholds for different products?
Yes, you can create multiple Flows or use complex conditions within a single Flow to check for different thresholds based on product tags, type, or specific variant properties. This allows for granular control over your inventory alerts.
How can I include the product image or a direct link in the notification email?
When configuring the 'Send internal email' action, you can use Liquid variables like `{{ product.featuredImage.url }}` to embed product images or `{{ product.adminUrl }}` to provide a direct link to the product's admin page for quick action.
What if I want to notify my supplier directly when stock is low?
While the 'Send internal email' action is best for internal teams, you could explore integrating with an inventory management app like Stocky, which might offer supplier communication features, or use a custom HTTP request action in Flow if your supplier has an API.
How often does Shopify Flow check for inventory changes?
Shopify Flow reacts in near real-time. The 'Product variant inventory quantity changed' trigger fires immediately whenever a variant's inventory quantity is updated, ensuring prompt notifications as soon as stock levels shift.

Recommended Tools & Apps

Launch this automation

Open Shopify Flow and use this page as your setup blueprint.

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Merchant Insight

Consider setting your low-stock threshold higher than your actual 'out of stock' point to account for supplier lead times. If it takes a week to receive a restock, your threshold of '10 units' might actually mean 'order when you have 17 uni

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