After you have added contacts to your audience in Loops, you may want to send emails to certain groups of contacts.
You can do this with filters and segments.
Choosing these contacts is done using filters, which are based on contact properties (either default properties or custom properties you’ve added to your audience).
You can add multiple filters at once, and you can also choose to apply all filters (“All of these are true”) or any filter (“Any of these are true”).
Audience filters are automatically updated as contact properties are changed. This means that your emails will only send to contacts that match the filter at the time the email is sent.
Segments are just filters that are saved in your Loops account for the future. This makes them easily re-usable between different loops and campaigns.
Just like filters, segments are automatically updated when contact data is changed, meaning emails always send to the correct contacts at time the email is sent.