Retrieve all lead replies across all campaigns in your unified inbox
true: Returns complete conversation thread (slower, more data)false: Returns only latest message (faster, recommended for list views)false for list views, true only when viewing individual conversations.REPLY_TIME_DESC: Most recent replies first (default)SENT_TIME_DESC: Most recently sent emails firstlimit > 20fetch_message_history=false (Recommended)fetch_message_history=true