diff --git a/erklaerung/ptb-declaration.cls b/erklaerung/ptb-declaration.cls
index c95c55c4328c31f6365b94d3199ab826d877b4c2..4f2302f0ec699c630036c2159d1e02df8eca2b11 100644
--- a/erklaerung/ptb-declaration.cls
+++ b/erklaerung/ptb-declaration.cls
@@ -4,7 +4,7 @@
 
 \NeedsTeXFormat{LaTeX2e}[1999/12/01]
 \ProvidesClass{pt-declaration}
-    [2015/05/27 v0.1a PTB-Klasse (RN)]
+    [2016/10/17 v0.1b PTB-Klasse (RN)]
 
 \newcommand*\vl@lang{main=ngerman}
 
@@ -23,6 +23,8 @@
 ,parskip=true
 ]{scrartcl}
 
+\RequirePackage{eso-pic,graphicx,xcolor}
+
 \RequirePackage[\vl@lang]{babel}
 \RequirePackage{iflang}
 
@@ -68,11 +70,13 @@
 \newcommand*\myfax[1]{\vl@setcommand{vl@myfax}{#1}}
 \newcommand*\myemail[1]{\vl@setcommand{vl@myemail}{#1}}
 \newcommand*\yourref[1]{\vl@setcommand{vl@yourref}{#1}}
+\newcommand*\missingEntries[1]{\vl@setcommand{vl@missingEntries}{#1}}
 \newcommand*\vl@myref{}
 \newcommand*\vl@mymail{}
 \newcommand*\vl@myfax{}
 \newcommand*\vl@myemail{}
 \newcommand*\vl@yourref{}
+\newcommand*\vl@missingEntries{}
 
 \newcolumntype{Y}{>{\centering\arraybackslash}X}
 \newcolumntype{C}[1]{>{\centering\arraybackslash}p{#1}}
@@ -127,6 +131,19 @@
   \makeatother
 }
 
+\AtBeginDocument{%
+  \ifnum\number\vl@missingEntries>0 %
+    \AddToShipoutPictureBG{%
+      \AtTextCenter{%
+        \makebox(0,0)[c]{\resizebox{\textwidth}{!}{%
+          \rotatebox{54.7}{%
+            \textnormal{\textsf{\textbf{%
+              \color{lightgray}Fehler:~\vl@missingEntries}}}}}}%
+      }%
+    }%
+  \fi
+}
+
 
 \textheight=1.2\textheight
 \pagestyle{empty}
diff --git a/erklaerung/test-declaration-de.pdf b/erklaerung/test-declaration-de.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..a1a1ff17a387878ffcb5230dd1fd34d6fc12f42e
Binary files /dev/null and b/erklaerung/test-declaration-de.pdf differ
diff --git a/erklaerung/test-declaration-de.tex b/erklaerung/test-declaration-de.tex
index 65f4a73987bcc03ccc9ed6424d20e29ddf6c8f7c..8ea1760c38e9420472fcf7854b8ff2110f165b53 100644
--- a/erklaerung/test-declaration-de.tex
+++ b/erklaerung/test-declaration-de.tex
@@ -1,5 +1,7 @@
 \documentclass[de]{ptb-declaration}
 
+\missingEntries{ 17 }
+
 \myref{7.5-1V-15-05}
 \mymail{2015-12-04}
 \myfax{+49-30-3481-7490}
diff --git a/erklaerung/test-declaration-en.pdf b/erklaerung/test-declaration-en.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..8efd7376754d9a18c9201474603f03c620a06d2f
Binary files /dev/null and b/erklaerung/test-declaration-en.pdf differ
diff --git a/erklaerung/test-declaration-en.tex b/erklaerung/test-declaration-en.tex
index 3d6e2707bef95a81c98c09130b3d52ea3d0feea6..004573a0abf9415401bb9869f0a7bb9b72b49ac9 100644
--- a/erklaerung/test-declaration-en.tex
+++ b/erklaerung/test-declaration-en.tex
@@ -1,5 +1,7 @@
 \documentclass[en]{ptb-declaration}
 
+\missingEntries{ 0 }
+
 \myref{7.5-1V-15-05}
 \mymail{2015-12-04}
 \myfax{+49-30-3481-7490}