Q. If the Chupa will be at night after Maariv, should the Chassan say Vidui also after Maariv?
A. Chakal Yitzchok (79) and Nitei Gavriel (8: 11) and others maintain it should not be said.
Horav Shlomo Miller’s Shlit’a opinion is that is similar unless it was not said by Mincha.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a