
Originally Posted by
CoolCarPartsOnline
Like you said this is optional in most countries. Why would you want it to be required. What if a customer doesn't have a second address such as Apt or Suite, or they choose to write their complete address in one line. Are you willing to loose a sale or a customer because you are making them think why there account hasn't been created.
You can look into the create_account header and copy the rules from address 1 to address 2 then edit your create_account module and create_account template to pass the required field to the customer.