You can specify one or more languages on the PreferredLanguage property. Use the three-letter ISO 639 code associated with each language that you specify. Add a list of one or more languages as an array to the PreferredLanguage property. Address Verification tries to return an address in the most-preferred language based on the order that you specify in the array. If the first language that you specify is not present in the reference data, Address Verification tries to return the address in the next language in the array.
For example, when you submit NLD, FRA, and DEU as the list of preferred languages, Address Verification returns the address in Flemish. If the reference data does not contain the address in Flemish, Address Verification returns the address in French if available.
The following code fragment shows a sample of one or more languages in the PreferredLanguage property:
Use a comma to separate the languages on each line of the array, as shown in the code fragment.