What does it mean when a property is "set" or "not set"?

HI @B B 

If you’d like to post a screenshot of your flow and flow filter, I’d be happy to take a look and troubleshoot it with you and see if we can get it working.

Thanks,

@In the Inbox 

Hi @B B , jumping in here with @In the Inbox (Bryan), 

Did you make sure to set a time delay between sending the email and evaluating the condition? If you didn’t give it a time delay, it may have evaluated that “you didn’t click” instantly before you actually had the time to perform the click in the email. Can you share what your Flow looks like as well?

@B B Thanks for sharing the Flow, and it’s what I suspected that you didn’t give someone a chance to click before sending the “Post-Engagement email.”  So what’s happening is your first email (Reengagement Email #1) is sent, and in literally a split second later, it evaluate if someone clicked.  Obviously, no human can receive an email and click in less than 1 second, so it’s going to evaluates to the “No” side because it fails your first condition “Clicked at least once since starting the Flow.” 

How much time delay is up to you to determine, normally, I would give it at least 1 full day.  You can look in any of your campaign flow messages, and realize that majority of people click within the first day (actually, in the first few hours).  The longer you wait, the more people will go to the “Yes” branch, the shorter you wait, it is more likely they will get the Reengagement Email #2. 

Creating a Segment Triggered Flow

Now, to make things a bit more sophisticated, and if I understand your goal, If you want to send the “Post-reengagement email” whenever someone clicks Email #1 (but have not received Email #2 yet) “instantly” - you can create a separate Flow triggered on a Segment of people who have received Email #1 AND Clicked on Email #1 WITH a Flow Filter of not receiving Email #2 yet.

Just note, Segment triggered Flows have a slight delay (10-15 minutes) for processing, so it’s not going to send the second someone clicks, but it gets you closer to an “instant reply” after the click. This is a bit of extra work to do, but it will have this effect that if someone clicks on an email, they get a reply right after the click. There’s a few complexities if you want people who clicked on Email #1 to also get your Email #2 (since they would have also received the “Post-reengagement email...”, but you can modify your Flow Filters (or Message Filters) to adjust to what you intend to do.

I hope this gets you on the right track with some options to consider!