1. Address Line 1 and Line 2 length. The length cannot exceed 20 characters. If exceed, error message will display.
2. Mandatory fields. Address Line 1, City, State and Zipcode. These are mandatory fields. Validations require to check whether it's fill-in.
3. City or State change. It'll compare user entered value with current store value. If there is changes, it'll pop up a window. This window can contains URL, message and button.
4. ZipCode Validation. It'll check whether zipcode enter is valid.
Hope to hear from expertise soon.