Customer Preference
<CustomerPreference> entity contains customer preference data. For a specific customer preference, it may have multiple values. Therefore, other than <CustomerAttribute>, the value(s) of <CustomerPreference> is in sub entity <CustomerPrefenceValue>. For example, a customer’s favorite rivers are:
<CustomerPreference Name="Favorite River"><CustomerPreferenceValue>Amazon</CustomerPreferenceValue ><CustomerPreferenceValue>Yangtze</CustomerPreferenceValue ></CustomerPreference></Customer>