How should a developer prepare files for changing an address form from a Canadian to a U.S. format?

To adapt an address form from a Canadian to a U.S. format, it is essential to follow naming conventions that distinguish the locales accurately. The correct approach involves creating a copy of the existing address.xml file and renaming that copy to address_en_US.xml. This naming convention is crucial as it clearly indicates that the file contains the address structure specifically for the U.S. audience.

Using "en_US" directly indicates that this version of the form is tailored for English speakers in the United States, aligning with Salesforce's localization strategy, which aims to present users with the correct language and format for their specific region. It ensures that the platform can recognize and utilize this file accordingly during customer interactions that cater to U.S. residents.

This option upholds localization standards and ensures that the system can manage different regional requirements effectively. The careful renaming also prevents confusion that could arise from having multiple files named similarly, facilitating easier maintenance and updates in the future.