Hello @zhao renzong​ 

Thanks for writing us at the AA forum.

Request to look into the below articles to ensure that the pre-requisites are met to get the values through API

https://docs.automationanywhere.com/bundle/enterprise-v2019/page/enterprise-cloud/topics/control-room/control-room-api/cloud-bot-log-data.html/p>

https://docs.automationanywhere.com/bundle/enterprise-v2019/page/enterprise-cloud/topics/control-room/control-room-api/cloud-bot-variable-profile.html/p>

For assistance through our Support Engineers, please reach us via Support case

https://apeople.automationanywhere.com/s/article/How-to-create-a-support-case-in-service-cloud/p>

You can also check our Live Chat support option, for quick assistance from our engineers

https://apeople.automationanywhere.com/s/article/Live-Chat-Support-FAQs/p>

You can also search for available documentation in

https://docs.automationanywhere.com//p>

For more details, you are welcome to leverage our open source portal where multiple use case is available

https://botstore.automationanywhere.com//p>