Here, it explains how to induct Chat Plus to Cybozu Kintone.
Copy chat window code
(1) Click on the setting button on the upper right of the management page.
(2) Click [General setting]>[Chat window] on the left side of the screen.
(3) Copy tags between [<scrpt>][</script>] in the section [Chat window].
Create JavaScript file
(1) Open text editor like sticky notes to paste the code you copied in [Copy chat window code](3).
(2) Save expansion as [.js].
Induct to Cybozu Kintone
(1) Log into Cybozu Kintone
(2) Click on [Setting mark]>[Kintone system management] at the top right of the screen.
(3) Click on [Customize]>[Customize by JavaScript/CSS]
(4) Choose JavaScript file for PC which you created in [Upload and add] and click [Save].
(5) Access site and check to see if the chat is displayed.