There is no rule at all for the UVC Login password (length, complexity, age, history, ...).
Release : 6.10
Component : DOLLAR UNIVERSE UVC
To set any rule on the password, we suggest to use LDAP accounts as described below :
https://docs.automic.com/documentation/webhelp/english/ALL/components/DU_AS/latest/%20%20Dollar%20Universe%20Guides/help.htm#search-login%20history