API extract messages after a specific time

Here is the documentation for that constraint:

https://developer.khoros.com/khoroscommunitydevdocs/docs/messages#conversationlast_posting_activity_time

As it says, it:

Filters messages by the larger of these two date fields:

• the last post time (equivalent to the conversation.last_post_time constraint)
• the last time the topic message was published (the last time a non-draft edit was made)

The "last post time" it refers to (what the conversation.last_post_time constraint is for) means the last time a reply to the conversation was posted.

-Doug