Using the ‘Last Seen On’ field in a campaign or a contact search is helpful in identifying contacts who’ve last communicated with you relative to a date.
You can use this field to find contacts who’ve been unresponsive or dormant and reach out to them or delete them from your database.
Searching with ‘Last Seen On’
![](https://storage.crisp.chat/users/helpdesk/website/6b944d0e58bfdc00/706ae38e-4e39-4077-92ef-434b05_1p5udci.png)
Using a query with last_seen_on, you can search for contacts who were last seen relative to a specific date.
You can use the following operators to perform a search on all contacts present in your account:
last_seen_on = “date” to search for an exact date
last_seen_on > “date” to search for all contacts seen after a date
last_seen_on < “date” to search for all contacts seen before a date
last_seen_on >= “date” AND last_seen_on <= “date” to search for contacts last seen between two dates
last_seen_on != “date” for contacts not last seen on an exact date
last_seen_on = “date” OR last_seen_on = “date” for contacts last seen on multiple specific dates
With the resulting contacts, you can create a new group. In the example below, we searched for contacts who were last seen before a specific date.
![](https://storage.crisp.chat/users/helpdesk/website/831c279ca1323000/b6ce7cd5-4c28-44ff-a671-32f7d7_v8kfer.png)
We’ll click “Save as Group” to create a new group with just these contacts:
![](https://storage.crisp.chat/users/helpdesk/website/de08977c32ef6000/ef4a5fce-1ebf-4f65-b225-be7573_11fvcvi.png)
![](https://storage.crisp.chat/users/helpdesk/website/6d652821a9aed400/198db3b7-1d16-4bce-9007-5cc600_15clqo4.png)
Last, we’ll name the group. Here, we’ve identified contacts who haven’t interacted with us in several months, so we’ll name the group “Dormant”:
![](https://storage.crisp.chat/users/helpdesk/website/2c81ae888f0e6400/9991b672-9e6a-4dca-8cc9-895afe_1mqoyu6.png)
If we’d like, we can send that group a reminder message or even delete them entirely.
Using ‘Last Seen On’ in a Campaign
What if we wanted to follow up with contacts who haven’t interacted with us recently? We could do this from within a campaign without having to search for contacts or creating a smart group. Here’s how:
![](https://storage.crisp.chat/users/helpdesk/website/67006d09a9a41800/53a6b026-b3b8-40b7-8427-4bd5af_1y5yz23.png)
In the example above, we’ve created a campaign event that will send a message to all contacts 90 days after the ‘Last Seen On’ field, which is the date they last interacted with us.
Sending a message or flow to contacts who’ve been dormant is helpful in reminding them to follow up with you or to weed out contacts who can be deleted.