In particular, is it omitted/not calculated if only one email is sent? Is there a minimum number of emails that have to be sent for it to be calculated?
Hi Katharine Bierce - timely question for me - I'm leading a training session for my marketing team today around nurtures.
As for insight into how the score is calculated, I can't offer anything beyond what Frank mentioned. However, I use this ambiguity around the score as a segue into introducing marketers to other more relevant reports. The Engagement Stream Performance report in Analytics is a much better option to help evaluate your nurtures!
Marketo says engagement score is made up of it's own algorithm, they say it's a mixture of opens/clicks and more, I assume documentation is limited about it as it's structure is part of their backend. For Engagement programs it takes 24 hours to populate, Email Sends should populate after run.
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