You can pass an input parameter called alt_client_acct_group_id into the API methods listed below. alt_client_acct_group_id is a client group ID used to uniquely identify a collection account group. When you call the API methods listed below, you can pass in an alt_client_acct_group_id to specify that the payment or validation you are currently submitting should be processed using the payment gateway information associated with the corresponding collection account group instead of the default Aria collection account group or the collection account group to which a customer is assigned.