My affiliation after I moved to another institution for Ph.D I did my Master's in A university and then moved on to B for my Ph.D.
Covid outbreak started about the time when I was wrapping up my project, I had most of my manuscript done and was pending for iterative feedbacks from my advisor at A university. Due to COVID, my project got pushed back from priority and now, as a Ph.D. student at B university, I'm re-working my manuscripts to submit to an academic journal.
I don't know what to do with my affiliation in this situation. Should I list mine as of B university? Or should it still be A?
Most of the work was done at affiliation A and your adviser for that project was at affiliation A, and now you are at affiliation B. I disagree with Buffy's answer, which is to list your affiliation as B rather than A.
The most common approach is to put affiliation A with a footnote that says: &quot;Present address: affiliation B&quot;, or to put both affiliation A and B.
You might also like to ask your advisers at affiliation A and B whether or not to include those affiliations on your paper, so that neither adviser can get angry at you for doing what they don't want you to do or not doing what they do want you to do.