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Fix Shopify → Klaviyo Sync Issues (Not Working, Errors, Duplicates)

🔧 5 Common Issues

Diagnose and resolve common sync problems. We've documented the 5 most common issues, their root causes, and exactly how to fix them. See step-by-step fixes for duplicates, missing fields, rate limit errors, and connection issues.

critical High Frequency

Klaviyo metrics (Placed Order, Viewed Product) show 0 or incomplete data

Also searched as: "Shopify Klaviyo klaviyo metrics (placed order, viewed product) show 0 or incomplete data"

#1 Tracking code installation issues 90% likely

📋 How to Diagnose

  1. 1. Check Klaviyo tracking code in Shopify theme
  2. 2. Verify if metric events are being sent
  3. 3. Review browser console for errors

✓ Solution

Reinstall Klaviyo tracking code or use Make to sync events via API.

⏱️ Est. time: 30 min

Use Make → →
View Setup Guide
high Very High Frequency

Abandoned cart emails send 24-48 hours late

Also searched as: "Shopify Klaviyo abandoned cart emails send 24-48 hours late"

#1 Webhook configuration error 95% likely

📋 How to Diagnose

  1. 1. Check Klaviyo integration settings for webhook configuration
  2. 2. Verify if abandoned cart webhooks are being received
  3. 3. Review flow trigger settings

✓ Solution

Reconnect Shopify integration or use Make for instant webhook handling.

⏱️ Est. time: 25 min

Use Make → →
View Setup Guide
medium High Frequency

Klaviyo flows trigger for the wrong Shopify store, so customers get irrelevant product links.

Also searched as: "Shopify Klaviyo klaviyo flows trigger for the wrong shopify store, so customers get irrelevant product links."

#1 Single Klaviyo account connected to multiple Shopify stores with shared profiles 90% likely

📋 How to Diagnose

  1. 1. Klaviyo > Integrations: confirm more than one Shopify store is connected
  2. 2. Open a profile and check `Shopify Store` custom property
  3. 3. Review flow filters—most reference only generic collections

✓ Solution

Duplicate the flows per store and add a trigger filter on `Shopify Store ID`. Use Make to stamp the store ID onto every profile at sync time.

⏱️ Est. time: 35 min

View Setup Guide
medium High Frequency

Klaviyo customer profiles are missing custom properties from Shopify

Also searched as: "Shopify Klaviyo klaviyo customer profiles are missing custom properties from shopify"

#1 Field mapping errors 100% likely

📋 How to Diagnose

  1. 1. Check Shopify custom fields and Klaviyo properties
  2. 2. Verify field mapping in Klaviyo integration settings
  3. 3. Review recent customer sync logs

✓ Solution

Use Make to map Shopify custom fields to Klaviyo properties.

⏱️ Est. time: 35 min

Use Make → →
View Setup Guide
medium Moderate Frequency

Klaviyo product recommendations show outdated inventory or incorrect prices

Also searched as: "Shopify Klaviyo klaviyo product recommendations show outdated inventory or incorrect prices"

#1 Product feed sync error 85% likely

📋 How to Diagnose

  1. 1. Check Klaviyo product feed status
  2. 2. Verify feed URL is accessible
  3. 3. Review product data for formatting issues

✓ Solution

Resync product feed or use Make to schedule daily updates.

⏱️ Est. time: 20 min

Use Make → →
View Setup Guide

Step 1: Try the Official Integration

Direct connection

Start with the native integration if available. It's usually the most reliable, but may have limitations.

View Setup Guide

Free with your subscription

Step 2: Use Make for Custom Flows

No code automation

Create custom integration workflows with Make's visual designer. It works with almost any API.

Try Make Free →

1000 ops/mo free. No credit card.

Step 3: Self-Hosted with n8n

Full data control

Need complete data privacy? n8n is open-source and self-hostable. Build custom integrations with full control over your data.

Try n8n Free →

Open source. Self-host or cloud. Unlimited ops.

Step 4: Add Human Review

Approval automation

Relay adds human-in-the-loop approvals, Slack/Teams alerts, and conditional logic to your automation.

Try Relay Free →

1000 actions/mo free. No credit card.