Credit Management
Client accounts that you create using built-in client module will limit client accounts to use the email credits (Sending Limits) as set in the user group (Subscribed Plan). But in case a client requires extra email credits for his account, you have an additional option provided via Add Credit function. You would just need to select the client account, number of email credits you want to add in the account and the expiration month-date. In normal circumstances, credits are being allocated to the client group however.