First things first:

AB.jpg

A- represents the number of contacts in that segment

Why is it grey in colour? Because contacts have flown out of that step and into the next one

 

B- represents the number of contacts who did not get sent the email

Why is it green in colour? Because contacts were not sent the email and are still in that step

Why were they not sent the email? Double click to find out.

Report.jpg

 

 

When you export this report, the status is displayed in terms of exclusion codes, like so:

export.jpg

Following is an intepretation of all the Status Codes:

Codes.jpg

 

Now, you know.