If you click [History] on the management screen, you can see the chat history.
(1)Click the setting button on the upper right of the management page.
(2)Click [History] at the top of the screen.
(3)Set search condition of the history you want to display in pull down and text box.
(4)Click [CSV download]
(5)You will be asked [Open XXXXX.csv file or save?], so click [Save].
(6)If you open CSV file you saved, you can check whether the history you exported is there or not.