@Leeching Spouse I went through the same process early last year. I got my I140 approved in Jan 2021, and I got married shortly after. I was also confused by the FAQ instruction that said I can add a derivative in CEAC as I didn't see any button for such activity. After calling NVC, I learned EB category needs to submit an email inquiry form to add a spouse as a derivative. In the email inquiry, I had to attach some documents such as proof of marriage and other documents under my wife's name. I recommend you give a call to them to get the exact list of docs you need. After my request got processed, a DS-260 for my wife appeared in my account. I paid the fees, and we filled out and then submitted together. I chose not to submit mine first as there was some information that had to be cross checked between my wife's and mine. I see a post mentioning follow-to-join, but this is not true according to my convo with my lawyer back in 2020. I'm in EB3 category and my wife and I got DQ'ed this March, waiting indefinitely for the IL.