Event Planning Q- Do I have to have a rehearsal dinner if my ceremony will be at the same place as my reception and the rehearsal will be on the day of the Wedding? By Long Island Press Posted on June 30, 2011 Sign up for our LI Press email newsletter to get news, updates, and local insights delivered straight to your inbox! A – No, the only time you should have a rehearsal dinner is if you are getting your bridal party together before the wedding, for a rehearsal.