Account limits for a domain can be set when the domain is created and can be changed later by editing the Domain configuration.
Select the domain to edit and open the Accounts Limits page.
Each of the following fields can be set:
In the Maximum accounts for this domain, enter the maximum number of accounts that can be provisioned on this domain. If an account limit was set when the domain was created, that number is displayed in this field. If no number displays in the field, the domain has no account limits.
If the domain has other COS in addition to the default COS, in the Maximum accounts per COS field add the COS and the limit allowed. Click Add and in the Class of Service field enter a COS name to search. Select a COS from the list and in the Limit field enter the maximum number of accounts allowed for that COS. Click OK.
Click Save.