You can manually reset a customer's password while logged in with your admin account.
- Find the customer by searching for their email or name from the People index.
- From the customer's profile page click "Reset Password" from the actions menu.
Resetting a customer's password will email the customer a random password. You will also receive a copy of this email in case the customer does not get theirs.
Note: This is a meant to be a temporary password. The customer should be encouraged to update their password from their account to ensure their account is secure.