When creating segments, you can include lists, but you cannot include other segments as segmentation criteria.
Why not? Other ESPs and CRM tools do offer this feature, and it is very helpful.
Why is it very helpful?
I’ll give you an example:
Let’s say you want to create a segment that includes:
- Everybody in a certain list;
- Everybody who last logged in to your website less than 90 days ago, AND who is opted in; OR
- Everybody who last opened an email from you less than 90 days ago.
If you have pre-built segments for:
“everybody who last logged in to your website less than 90 days ago, AND who is opted in; and
“everybody who last opened an email from you less than 90 days ago”,
every time you want to use these segments to create other groups, you can just use these pre-made segments as inclusion criteria, rather than having to select and combine a range of properties every single time you want to create a similar, but not identical segment. This functionality would save time, and it would also reduce the margin of error as long as the foundation segments are correct.