Thanks for you information, I know where to reset it or change expire rule.
But I am using the code(script) to upload file to VCSA with root account, so before I do upload action, I should check if the root account has expired or not? If it is expired, my code should popup message like "root account is expired, please reset or change it ". So my question is that if there is an API to get expire information or validate if root is expired?