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  • 5 Common Klaviyo Integration Issues and Fixes
eCommerceMay 9, 2025

5 Common Klaviyo Integration Issues and Fixes

By Alinga Admin

When integrating Klaviyo with Shopify Plus, common issues can disrupt your marketing efforts. Here’s a quick summary of the top problems and their fixes:

  • Data Sync Problems: Fix by resetting the connection, monitoring API limits, and cleaning up inconsistent data.
  • Form Data Collection Errors: Check JavaScript settings, reset the Klaviyo app, and review theme compatibility.
  • Multiple Email Sends: Prevent duplicates by disabling overlapping Shopify notifications and auditing Klaviyo email flows.
  • Privacy Compliance Issues: Use Shopify’s Customer Privacy API and configure tracking to align with privacy laws.
  • Coupon Code Problems: Set up clear flow rules, use advanced discount tools, and monitor code usage.

Addressing these issues ensures smooth integration, better customer experiences, and improved marketing performance.

1. Data Sync Problems

Issues with data synchronisation between Klaviyo and Shopify Plus can disrupt operations, causing fragmented marketing campaigns and a poor customer experience. Resetting the connection can help restore proper data flow.

Reset Integration Connection

To reset the connection between Klaviyo and Shopify Plus:

  • Export your Klaviyo lists to ensure no data is lost.
  • Disconnect the integration via Klaviyo’s settings.
  • Wait for at least 15 minutes before proceeding.
  • Reconnect the platforms, ensuring you grant updated permissions.

After reconnecting, monitor your data for at least 24 hours. Pay close attention to new subscriber additions and updates to purchase history.

Monitor API Limits

Shopify Plus has strict API rate limits that can interfere with data syncing. To minimise disruptions:

  • Turn on the “Sync Shopify email subscribers to Klaviyo” option.
  • Schedule bulk updates during off-peak hours, such as 2:00 AM to 5:00 AM AEST.
  • Adjust sync frequency based on your store’s transaction volume to avoid bottlenecks.

Fix Data Inconsistencies

Data inconsistencies often result from duplicate profiles, incomplete records, or outdated purchase histories. Here’s how to address these issues:

  • Audit Profiles: Check for duplicate email addresses, incomplete information, outdated purchase histories, and inconsistent tags.
  • Clean Data Records: Merge duplicate profiles, remove invalid email addresses, update outdated contact details, and standardise custom properties.
  • Implement Validation Rules: Ensure email formats are correct, standardise phone numbers, enforce consistent date formats (DD/MM/YYYY), and validate Australian postal codes.

Taking these steps will help maintain accurate and reliable data across your platforms.

2. Form Data Collection Errors

Accurate form data collection is critical for running successful email campaigns. Problems with gathering form data can slow subscriber growth and limit revenue potential, often due to misconfigurations between Klaviyo and Shopify Plus.

Check JavaScript Settings

JavaScript must run smoothly without conflicts. Here’s how to troubleshoot:

  • Go to your Shopify Plus admin panel and ensure Klaviyo’s onsite JavaScript is enabled under App Embeds.
  • Open your browser’s console to check for JavaScript errors or conflicts.
  • Verify that the required Klaviyo snippet is included in your theme.liquid file.

If these steps don’t resolve the issue, consider resetting the Klaviyo app.

Reset Klaviyo App

Klaviyo

If forms stop collecting data, uninstall and reinstall the Klaviyo app. This will reset the integration settings and may resolve the problem.

Review Theme Settings

Make sure your theme’s customiser settings are compatible with Klaviyo’s embedded forms. If the problem continues, updating the theme or consulting a developer might be necessary.

3. Multiple Email Sends

Sending duplicate emails can confuse your customers, increase unsubscribe rates, and reduce overall engagement.

Turn Off Shopify Emails

To prevent duplicate emails, start by disabling certain Shopify notifications:

  1. Go to your Shopify Plus admin panel.
  2. Navigate to Settings > Notifications.
  3. Find the customer notification templates.
  4. Disable templates managed by Klaviyo by clicking Manage.

Focus on these key transactional emails:

  • Order confirmation
  • Shipping updates
  • Abandoned cart reminders
  • Customer account notifications

After disabling these, make sure to review your email flow settings to avoid any overlaps.

Fix Email Flow Settings

Take these steps to streamline your email flows and avoid sending duplicates:

  • Audit Your Triggers
    Check all active Klaviyo flows for overlapping triggers, especially in:

    • Welcome series
    • Post-purchase sequences
    • Abandoned cart reminders
  • Set Up Flow Filters
    Add filters to your flows to prevent multiple emails, such as:

    • ‘Has not received email in X days’
    • ‘Has not started flow in X days’
    • ‘Has not placed order since starting flow’
  • Keep an Eye on Performance
    Regularly monitor your email performance by:

    • Checking email send logs daily
    • Watching for customer complaints about duplicates
    • Analysing flow metrics for any unusual trends
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4. Privacy Compliance Issues

Meeting privacy compliance requirements is crucial for Australian businesses to maintain trust and adhere to legal standards, both locally and globally. Just like fixing data sync or email problems, setting up proper privacy measures strengthens customer confidence.

Set Up Privacy API

Shopify’s Customer Privacy API can help improve data transparency. To get started, go to your Klaviyo integration settings and enable privacy-related features. Make sure you have clear policies in place for how you collect and store data, and include tools to track customer consent.

Configure Tracking Options

Check Klaviyo’s tracking settings to ensure they align with privacy laws. Tailor consent options and data collection methods to fit your policies and legal obligations. Regularly review these settings to stay up to date with any regulatory changes.

5. Coupon Code Problems

With recent privacy compliance updates, fixing coupon code issues is crucial for running promotions smoothly.

Common problems include dynamic discount codes not working correctly, which can result in lost discounts or codes becoming invalid during checkout.

Set Up Flow Rules

Make sure Klaviyo flow rules are properly configured to trigger at the right time with clear conditions.

  • Define specific conditions based on customer segments, past purchases, or engagement levels.
  • Use Klaviyo’s preview mode to test the flow logic and ensure triggers and conditions are functioning.
  • Monitor redemption rates and track failed attempts to spot issues early.

Use Discount Tools

For more complicated promotions, take advantage of advanced discount tools. Key features to configure:

  • Automatic generation of discount codes.
  • Clear usage limits per customer.
  • Proper expiration dates.
  • Cart value restrictions to meet promotional goals.

Create API Solutions

For advanced promotional needs, custom API solutions can provide greater control and flexibility.

1. Generate Unique Codes
Develop a system that creates unique codes while avoiding duplicates and adhering to formatting rules.

2. Distribute Codes Efficiently
Automate code distribution through Klaviyo flows, ensuring accurate tracking and delivery.

3. Track Usage
Set up monitoring systems to keep an eye on:

  • Redemption rates.
  • Failed attempts.
  • Patterns of invalid code usage.

Conclusion

Resolving Klaviyo-Shopify Plus integration issues can significantly improve your eCommerce operations. By implementing the fixes mentioned earlier, you can create a well-connected system that supports ongoing growth. A properly functioning Shopify Plus integration is key to achieving eCommerce success.

Tackling challenges like data sync problems, form collection errors, duplicate emails, privacy compliance, and coupon code glitches helps businesses run smoother marketing campaigns. Seeking expert advice can make resolving these issues much simpler.

“We use proven strategies, tailored design, & innovative technologies to make beautiful and conversion optimised eCommerce experiences“

With over 20 years of experience, Alinga knows that customised strategies play a crucial role in boosting conversions. A well-integrated system ensures your customers enjoy a seamless experience.

Are you ready to elevate your online business to the next level? With automation, easy customisation, and multi-channel adaptability, Alinga’s Shopify Plus integration will help grow your e-commerce business. Our team of experts ensures that your setup is smooth future-ready, and fits every requirement. Let’s explore how Alinga can transform your Shopify platform into an effective sales tool, get in touch with us right away!

Related posts

  • Klaviyo Triggers for Abandoned Cart Emails
  • How to Integrate Klaviyo with Shopify Plus
  • Shopify Flow Integration with Klaviyo
  • 5 Klaviyo Email Flows for Shopify Plus Success

Alinga agency, eCommerce automation, email marketing, Klaviyo fixes, Klaviyo integration, Klaviyo Shopify issues, Shopify apps
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