Change subscription to user and pass

[mohsen_husseini]

Hi

I am using WHMCS for creating hosting account in plesk .
Every time i create a hosting account for a user it is created under a Subscription .
When i create the second hosting account for the same user in WHMCS this account will also be created under the same subscription in plesk and user has to use the login info of the subscription to manage the both hosting accounts!, and the user&pass that whmcs generated does not work.
Is there anyway to change this behavior?, Every hosting account has its own set of user&pass .