Hello -
Today (Nov 12, 2012), we released a change to People Analytics API. Specifically, responses from the /api/2.0/engage and endpoint now includes a virtual $last_seen property.
The $last_seen property reflects the last time a people record was updated. We are only tracking updates that have happened since today so many of your people records will not have a $last_seen set. $last_seen will automatically be updated whenever you update a user's people record.
send $ignore_time = true:
For example, the following dictionary would update a property for a user without updating their $last_seen:
{
'$token': '123abc',
'$distinct_id': '789',
'$ignore_time': true,
'$set' {
'property': 'value'
}
}
Thanks!
Geddes
--
Geddes Munson
Solutions @ Mixpanel