Send Confirmation Emails When Customers Sign Up for Back-in-Stock Alerts with Klaviyo

This guide will walk you through setting up automated confirmation or thank you emails when customers sign up for back-in-stock alerts using STOQ's new Klaviyo metric. By following these steps, you'll be able to engage customers immediately after they express interest in your products.

You can use this confirmation email flow for several simple but effective purposes:

1. Send a Thank You Email: Automatically thank customers for showing interest in your products when they sign up for back-in-stock alerts.
2. Send Signup Confirmation: Provide immediate confirmation that their alert signup was successful, so customers know they'll be notified when the item is back in stock
3. Welcome new subscribers: Introduce your brand to first-time visitors who sign up
4. Offer exclusive discounts: Provide a special coupon code as a thank you for signing up
5. Suggest similar products: Recommend alternative items that are currently in stock

Step 1: Create a Flow

1. Log into your Klaviyo dashboard
2. Navigate to Flows in the left sidebar
3. Click Create Flow
4. Choose Build Your Own
5. Give your flow a descriptive name like "Customer Signup Confirmation" or "Thank You for Signing Up"

Step 2: Set up the Trigger

1. Click on the "Select a trigger" button in the flow
2. In the right sidebar that appears, you'll see several trigger options
3. Under "Your Metrics", find "API" and click to expand it
4. In the list of API metrics, locate and select "Stoq - Customer signed up for alert
5. 

This metric captures customer signups for back-in-stock alerts and includes valuable data like customer details and product information

Step 3: Confirm and Save the Trigger

1. After selecting the correct trigger, click the "Save" button at the bottom of the sidebar
2. A confirmation dialog will appear asking you to confirm your trigger selection
3. Carefully review the selected trigger (it should show "Stoq - Customer signed up for alert")
4. If everything looks correct, click "Confirm and Save"

Important: Triggers cannot be changed once a flow is created, so review this step carefully.

Step 4: Add Email Action

1. On the left menu, From the list of actions, select "Email"
2. Drag and drop the Email action into your workflow, connecting it to the trigger

Step 5: Configure Your Email Template

• Configure the subject and sender name of your email
• Next, you can choose an existing email template or build your own.

Step 6: Review and Activate the Flow

1. Once you've finished configuring your email, locate the "Review and Turn On" button in the top right corner
2. In the modal window, select "Live" from the dropdown menu to activate your flow
3. Click "Turn On" to start the flow

Step 7: Test Your Flow

To ensure your flow works correctly:

1. Create a test signup on your store for a back-in-stock alert
2. Go to STOQ > Reports > Current Waitlist > test signup > send
3. Confirm Email: Check that the confirmation email is sent and displays correctly with all variables populated

Troubleshooting

If your flow isn't working:

• Check Integration: Ensure you've enabled the 'sync to Klaviyo' OR the email provider is set as Klaviyo in STOQ.
• Verify Metric: Confirm the "Stoq - Customer signed up for alert" metric exists in your Klaviyo dashboard
• Review Trigger: Double-check that you selected the correct trigger event
• Test Variables: Ensure all template variables are spelled correctly and formatted properly.
• Review Flow: Navigate back to your Flows page and confirm your flow shows as "Live"

Your customers will now receive immediate confirmation when they sign up for back-in-stock alerts, helping to build engagement and trust with your brand.

Updated on: 09/07/2025