The input fields AddressLine1 through AddressLine4 are handled differently for U.S. addresses depending on whether the firm name extraction or urbanization code extraction options are enabled. If either of these options is enabled, Validate MailingAddressUSCAN will look at the data in all four fields to validate the address and extract the requested data (firm name and/or urbanization code). If neither of these options is enabled, Validate MailingAddressUSCAN uses only the first two non-blank address line fields in its validation attempt. The data in the other address line fields is returned in the output field AdditionalInputData. For example,
AddressLine1: A1 Calle A
AddressLine2:
AddressLine3: URB Alamar
AddressLine4: Precisely
In this address, if either firm name extraction or urbanization code extraction were enabled, Validate MailingAddressUSCAN would examine all four address lines. If neither firm name extraction nor urbanization code extraction were enabled, Validate MailingAddressUSCAN would examine AddressLine1 and AddressLine3 (the first two non-blank address lines) and attempt to validate the address using that data; the data in AddressLine4 would be returned in the output field AdditionalInputData.