The InboxGeek system can integrate with both lists and segments for the Klaviyo integrations. InboxGeek will retrieve all of the lists and segments in your Klaviyo account in the drop-down menu. In order for your integration to perform, a list size of at least 30k is recommended. If a list size of under 15k is integrated, it is unlikely to see any results from your integration.
NOTE: Multiple lists/segments can be chosen for your integration. InboxGeek will filter and suppress duplicate contacts to prevent sending numerous events to a single contact.
![List](https://help.inboxgeek.com/wp-content/uploads/2022/03/List.jpg)
As in Klaviyo, the symbols used to identify your lists and segments are identical in your dropdown field for this step.
![Segment key](https://help.inboxgeek.com/wp-content/uploads/2022/03/Segment-key.jpg)
Select the list/segment that you’ve chosen to use with InboxGeek and then click Next.
InboxGeek will move you to the next tab, Integration.