public void setAccountName(String accountName) {
        this.accountName = accountName;
    }
<p>
The name of your Amazon QuickSight account. This name is unique over all of Amazon Web Services, and it appears
only when users sign in. You can't change <code>AccountName</code> value after the Amazon QuickSight account is
created.
</p>

@param accountName
       The name of your Amazon QuickSight account. This name is unique over all of Amazon Web Services, and it
       appears only when users sign in. You can't change <code>AccountName</code> value after the Amazon
       QuickSight account is created.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/CreateAccountSubscriptionRequest.java