To correctly input an address, type the full street address (not including any apartment, dormitory names, or room numbers; input these in line two) into the first line. The system will verify the information as you type and provide options that can auto-populate the city, state, and zip code boxes. 

When inputting a Post Office Box address, you will need to enter the post office's street address on the first line and your box number in the "Apt/Suite/Box" field once the correct address has been selected.