Find out how many people within a stream have opened at least one email.

[Anonymous]

I have a stream with multiple emails within it that operates on a monthly cadence. I want to learn how many people in that stream have opened up at least one email over a certain period of time.

I have tried using Smart Lists, but the numbers I got back were not consistent. I would like a foolproof method to learn this info.

Thank you for your help and time,

Alex

[Anonymous]

Thanks for the help.

[Anonymous]

Hey Alex, 

You could perhaps use program statuses to help track this depending on how you want to bucket your time frames for reporting. 

If your channel has a status of "opened" and any subsequent status (e.g., clicked) must first pass through open, then you would know that anyone with a status of "opened" or greater had opened at least one email. 

The campaign to change the status would trigger off

Email is opened
Email name contains [engagement program name]

Flow - change status in program to Opened

This one campaign could cover you for any email in the program. 

In your reports you could use "created date" as a filter in a smart list to see only certain cohorts of leads in the program. 

If you are looking to cohort by activity date instead (i.e., the date of the email being opened) I think you are back to smart lists for this. 

[Josh_Hill13]

Which smart list filters did you use?

Member of Engagement, Stream X
Opened Email XYZ at least once
Past X days

should provide you what you want.