The setting is in: Administration Center > Features > Security.
Minimum password length (characters) option set what the minimum length of the password to the user's account must be due to security. Users cannot use shorter passwords.
Click Minimum password length (characters) to set the value.
You fill in the number that represents the minimum password length. The lowest value that can be set is 5.
When you change the settings, be sure to click Save. For more information, go to Features.
Availability: Global setting is available since eWay-CRM 5.1.2.