DingTalk provides two types of robots: internal enterprise robots and custom robots.
This field expects the webhook URL generated for your robot.
It looks like https://oapi.dingtalk.com/robot/send?access_token=...
and should be kept secret.
For custom robots: create a robot in your DingTalk group, then copy the webhook URL here. Security options are configured in DingTalk and, if needed, in the Security Settings below.
For internal enterprise robots: obtain the webhook address from the internal robot FAQ, then paste it here.
Official documentation: