On the document list,there is a fee payment.Could you tell me what's the fee?Is there any fee before interview?Also there is IMMIGRANT VISA APPLICATION PART 1 and part 2.I don't know what is it mean.
Immigrant Visa Application is the DS-230. Part I and Part II is the complete DS-230. if you did EP, must to bring originals of everything submitted during EP intake/email. DS-230 is just one of those things.