Introduction
Klaviyo’s automation flows are essential for e-commerce success, ensuring timely, personalized communication with your customers. However, if your flows aren’t sending as expected, you may be losing potential revenue and engagement opportunities.
If you're facing issues where your Klaviyo flows are not triggering, this guide provides a step-by-step Klaviyo flow troubleshooting process to help you debug your automations.
Answer: Why Are Klaviyo Flows Not Sending?
Klaviyo flows may not trigger due to incorrect flow triggers, filters, list issues, or email sending restrictions. Here’s how to debug automation in Klaviyo step by step:
Check Your Flow Trigger & Filters – Ensure the correct triggering event or segment is set.
Verify Customer Data – Confirm that contacts meet the flow conditions.
Look at Suppression Rules – Excluded contacts or Smart Sending might be blocking emails.
Check Flow Analytics – Use Klaviyo’s Activity Feed and Flow History to debug.
Review Email & SMS Settings – Make sure emails/SMS are enabled and not in draft mode.
Step-by-Step Guide to Klaviyo Flow Troubleshooting
1. Check the Flow Trigger and Filters
Flows in Klaviyo are triggered by a specific action, segment, or metric. If a flow isn’t sending, the trigger or filters may be set incorrectly.
Where to Find This in Klaviyo:
Navigate to Flows in Klaviyo.
Click on the flow you want to troubleshoot.
Look at the Trigger Setup at the top of the flow.
Check whether the trigger is List-Based, Segment-Based, or Metric-Based.
💡 Common Issues:
If it’s a list-triggered flow, ensure the contact is actually added to the list.
If it’s segment-triggered, confirm the user meets the segment conditions.
If it’s metric-triggered, verify the event (e.g., "Placed Order") is correctly logged.
2. Verify Customer Data & Flow Eligibility
Your flow won’t trigger if contacts don’t meet the criteria.
How to Check This in Klaviyo:
Click Activity Feed in the flow’s sidebar.
Search for a specific contact who should have entered the flow.
Click on their profile and check:
If they have the trigger event recorded.
If they are part of the right list or segment.
If they were excluded due to Smart Sending.
💡 Solution:
If a contact should have entered the flow but didn’t, check if they were added to the list or triggered the event correctly.
Use Klaviyo’s Profile Activity Feed to verify recent events.
3. Look at Suppression Rules (Smart Sending & Exclusions)
Klaviyo has built-in rules to prevent over-emailing. If a flow is not sending, the contact may be suppressed due to:
✅ Smart Sending – Klaviyo limits emails to users who recently received one.
✅ Flow Filters – Certain conditions may be blocking users from entering the flow.
How to Check This in Klaviyo:
Click on the email or SMS inside your flow.
Check "Smart Sending" – If enabled, Klaviyo will not send to users who received an email recently.
Click "Manage Flow Filters" at the top of the flow to see if any exclusion conditions exist.
💡 Solution:
Disable Smart Sending if necessary (only if it’s safe for your audience).
Adjust flow filters to include more contacts.
4. Check Flow Analytics & Debug the Flow
Klaviyo provides Flow History and an Activity Feed that help debug automation issues.
Where to Find This in Klaviyo:
Open the Flow in Klaviyo.
Click "View Activity Feed" on the right side.
Click "View Flow History" at the top.
💡 What to Look For:
How many people entered the flow?
Were they filtered out?
Did emails/SMS get skipped due to suppression rules?
💡 Solution:
If contacts are getting filtered out, adjust your flow filters.
If emails/SMS are skipping due to Smart Sending, disable it in flow settings.
5. Review Email & SMS Sending Settings
If emails are not sending, check if they are enabled and published.
How to Check This in Klaviyo:
Open the email or SMS inside the flow.
Check if the message is in "Draft" mode instead of "Live".
Click "Show Analytics" to see if Klaviyo attempted to send but failed.
💡 Solution:
Change messages from Draft to Live mode.
If an email shows failed delivery, check the recipient’s profile for suppression reasons.
Best Practices for Fixing Klaviyo Flow Issues
✅ Use Test Profiles – Add a test email to verify if the flow works correctly.
✅ Check Entry Conditions – Make sure contacts meet the flow’s trigger and filters.
✅ Avoid Over-Segmentation – Overly strict filters can block emails from sending.
✅ Monitor Klaviyo Flow Analytics – Regularly check Flow History and Activity Feed.
✅ Check Email & SMS Sending Settings – Ensure emails are Live and not paused.
Common Mistakes That Prevent Flows From Sending
🚫 Wrong Trigger Type – Flow set to list-triggered but expecting an event trigger.
🚫 Contacts Not in List/Segment – Flow triggered by a segment, but users aren’t added.
🚫 Flow in Draft Mode – Email/SMS is not set to Live.
🚫 Smart Sending Blocking Emails – Klaviyo is throttling messages.
🚫 Suppressions & Spam Complaints – If a contact previously marked your email as spam, Klaviyo won’t send to them again.
Conclusion
Fixing Klaviyo flow troubleshooting issues requires checking triggers, filters, suppression rules, and analytics. By following this step-by-step debugging process, you can resolve automation failures and ensure your flows send as expected.
📩 Need help troubleshooting Klaviyo flows? Let’s talk.
At Dispatch, we help brands fix automation issues and maximize email & SMS marketing revenue.
👉 Connect with Dispatch today to fix your Klaviyo flow issues.
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