Client-user and administrator policies have separate enable switches, maximum password ages and history periods. Maximum password age is measured in days. Password history prevents reuse during the chosen number of days; set history to 0 to disable it.
Complexity options are:
- Disabled: no additional complexity requirement.
- Basic: at least 4 characters, including a letter and a number.
- Moderate: at least 6 characters, including uppercase and lowercase letters, and a number or symbol.
- Advanced: at least 8 characters, including uppercase and lowercase letters, a number and a symbol.
These are the addon's requirements; use a suitable policy for your organisation. WHMCS may apply its own requirements as well. Newly tracked users receive a starting age when first recorded; installing the addon does not establish the unknown date of an earlier password change.