diff --git a/Elwig/Windows/MemberAdminWindow.xaml.cs b/Elwig/Windows/MemberAdminWindow.xaml.cs
index e8ff054..b817019 100644
--- a/Elwig/Windows/MemberAdminWindow.xaml.cs
+++ b/Elwig/Windows/MemberAdminWindow.xaml.cs
@@ -726,7 +726,7 @@ namespace Elwig.Windows {
         private async void PredecessorMgNrInput_LostFocus(object sender, RoutedEventArgs evt) {
             var valid = InputLostFocus((TextBox)sender, Validator.CheckPredecessorMgNr);
             if (valid && ViewModel.PredecessorMgNr is int mgnr && (IsEditing || IsCreating)) {
-                if (MemberList.SelectedItem is not Member m || m.MgNr == mgnr)
+                if (ViewModel.MgNr == mgnr)
                     return;
                 using var ctx = new AppDbContext();
                 var areaComs = await ctx.AreaCommitments
@@ -736,11 +736,16 @@ namespace Elwig.Windows {
                     return;
 
                 var oldMember = (await ctx.Members.FindAsync(mgnr))!;
-                var d = new AreaComDialog(oldMember.AdministrativeName, m.AdministrativeName, areaComs.Count, areaComs.Sum(c => c.Area));
+                var newName = $"{ViewModel.FamilyName?.Replace('ß', 'ẞ').ToUpper()} " +
+                    $"{ViewModel.Prefix}{(!string.IsNullOrEmpty(ViewModel.Prefix) ? " " : "")}" +
+                    $"{ViewModel.GivenName}{(!string.IsNullOrEmpty(ViewModel.GivenName) ? " " : "")}" +
+                    $"{ViewModel.Suffix}{(!string.IsNullOrEmpty(ViewModel.Suffix) ? " " : "")}";
+                var d = new AreaComDialog(oldMember.AdministrativeName, newName, areaComs.Count, areaComs.Sum(c => c.Area));
                 if (d.ShowDialog() != true)
                     return;
                 ViewModel.TransferPredecessorAreaComs = d.SuccessorSeason;
-                SetOriginalValue(PredecessorMgNrInput, -1);  // hack to allow user to save
+                if (IsEditing)
+                    SetOriginalValue(PredecessorMgNrInput, -1);  // hack to allow user to save
                 UpdateButtons();
             }
         }