This is also the move I’ll make once we receive the NOA2. Some people are suggesting not to book an interview slot or medical appointment yet and just wait for the letter. I believe it will eventually arrive anyway and the case number can be requested 15 days after receiving the NOA2. Better than someone else beating me to the interview slots. As far as what I have read and noticed, others start filling out the DS-160 once the case is 'In Transit,' but you mentioned that there’s actually an email notification from the NVC? That seems better. We also don’t want to waste a day just waiting for the NVC to USEM email.
May I know what’s included in that email? Just curious, why are others for it before booking their appointment? I assume it's just the generic instructions on where to book the appointment, right?