Custom segments are audiences based on combinations of custom audiences. You can compose these audiences by clicking on New Audience and then Segment.
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A segment is composed by using:
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Include audiences
With the include audience(s) you can add custom audiences to the segment. When using multiple audiences you can use AND or OR to select if profiles have to be part of all selected audiences (AND) or one of the selected audiences (OR).
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The exclude audience(s) allows you to exclude custom audience(s) for the segment. Exclude audiences are based on OR. So when you select multiple audiences, a profile only needs to be in one of the selected audiences to be excluded from the segment.
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The Audience Details correspond to:
A segment audience cannot be used as entry audience of a journey!
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