diff --git a/Elwig/Documents/DeliveryConfirmation.cs b/Elwig/Documents/DeliveryConfirmation.cs
index dbc9af9..5eda941 100644
--- a/Elwig/Documents/DeliveryConfirmation.cs
+++ b/Elwig/Documents/DeliveryConfirmation.cs
@@ -30,7 +30,7 @@ namespace Elwig.Documents {
             _year = year;
             ShowDateAndLocation = true;
             UseBillingAddress = true;
-            DocumentId = $"Anl.-Best. {_year}/{m.MgNr}";
+            DocumentId = $"Anlfrg.-Bstng. {_year}/{m.MgNr}";
             Data = data;
         }
 
diff --git a/Elwig/Windows/MemberAdminWindow.xaml b/Elwig/Windows/MemberAdminWindow.xaml
index d0e1418..31ca251 100644
--- a/Elwig/Windows/MemberAdminWindow.xaml
+++ b/Elwig/Windows/MemberAdminWindow.xaml
@@ -552,7 +552,7 @@
                         <ColumnDefinition/>
                     </Grid.ColumnDefinitions>
 
-                    <Label Content="UID:" Margin="10,10,0,0" Grid.Column="0"/>
+                    <Label Content="UID:" Margin="10,10,0,0" Grid.Column="0" ToolTip="USt-IdNr. / Umsatzsteuer-Identifikationsnummer"/>
                     <TextBox x:Name="UstIdNrInput" Text="{Binding UstIdNr, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                              Margin="0,10,10,0" Grid.Column="1" Width="96" HorizontalAlignment="Left"
                              TextChanged="UstIdNrInput_TextChanged" LostFocus="UstIdNrInput_LostFocus"/>
@@ -575,7 +575,10 @@
                             Grid.Column="2" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="60,40,0,0"/>
                 </Grid>
             </GroupBox>
-            <GroupBox Header="Rechnungsadresse (optional)" Grid.Column="1" Grid.Row="1" Grid.RowSpan="2" Margin="5,5,5,5">
+            <GroupBox Grid.Column="1" Grid.Row="1" Grid.RowSpan="2" Margin="5,5,5,5">
+                <GroupBox.Header>
+                    <TextBlock>Rechnungsadresse (optional) <Run FontSize="10">für Lieferschein, Anlfrg.-Bstng., Tr.-Gutschr.</Run></TextBlock>
+                </GroupBox.Header>
                 <Grid>
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="65"/>
@@ -619,7 +622,7 @@
                              Margin="0,40,10,0" Width="78" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
                              TextChanged="DateInput_TextChanged" LostFocus="DateInput_LostFocus"/>
 
-                    <Label Content="BH-Konto:" Margin="10,70,0,0" Grid.Column="0"/>
+                    <Label Content="BH-Konto:" Margin="10,70,0,0" Grid.Column="0" ToolTip="Buchhaltungskonto"/>
                     <TextBox x:Name="AccountingNrInput" Text="{Binding AccountingNr, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                              Margin="0,70,10,0" Width="63" Grid.Column="1" HorizontalAlignment="Left"
                              TextChanged="TextBox_TextChanged"/>