Hi there - thanks for you question. Here is how to fix your issue.

The “Skipped: Email Syntax Error” issue in Klaviyo typically occurs when an email in your list has an invalid format. Since this is happening only for the first two emails in a four-email flow, here’s how you can troubleshoot and fix it:

Steps to Fix:

1. Check Email List for Formatting Issues:

• Go to your subscriber list and check if there are any improperly formatted email addresses.
• Common errors include missing “@” symbols, extra spaces, or invalid domain formats.

2. Verify Flow Recipients:

• If the issue occurs only for the first two emails in a sequence, check the profiles of the skipped recipients.
• Go to Analytics > Skipped Profiles for the flow and inspect why they were skipped.

3. Check Email Sending Logs:

• Navigate to Profiles > Activity Feed for affected users and see if there’s a log for syntax errors.

4. Validate Email Addresses:

• If possible, export the list and use an email validation tool (like NeverBounce or ZeroBounce) to detect invalid emails.

5. Manually Test Emails:

• If the emails were uploaded manually, re-enter them and ensure there are no hidden characters or incorrect formats.

Hi ​@Uranyen ! 

Thank you for reaching out to the Community! Happy to provide some additional information here. 

Typically when we see this skip reason, it is because your email contains a dynamic variable that does not align with the metric that is triggering your flow. For example, if you are using an image URL variable from the Checkout Started event, in a flow email that is triggered by Added to Cart, this will cause a syntax error. This is because the image URL variable sent with the Checkout Started event if completely different than the image URL variable sent with the Added to Cart event. 

We see this often with Abandoned Cart flows, where the customer is using Checkout Started dynamic variables (image URL, product name, price, etc.), but their flow is triggered by the Added to Cart metric. 

If you are on a paid plan, I would suggest reaching out to our support team so they can identify which syntax is causing the error, and provide you with the correct dynamic variables!