diff --git a/entity/Salesproject_entity/onValidation.js b/entity/Salesproject_entity/onValidation.js
index ffe29cce81f26b649d2866fd163f7600df045eb9..de922a24e2c75237fdf8910af75d02c60d55e87b 100644
--- a/entity/Salesproject_entity/onValidation.js
+++ b/entity/Salesproject_entity/onValidation.js
@@ -6,7 +6,11 @@ import("system.vars");
 var startDate = vars.get("$field.STARTDATE");
 var endDate = vars.get("$field.ENDDATE");
 
-if (!DateUtils.validateBeginnBeforeEnd(startDate, endDate))
-    result.string(DateUtils.getValidationFailString());
+if(!DateUtils.validateBeginnBeforeEnd(startDate, endDate))
+{
+    result.string(translate.text("The roll out date must be after the project start!"));
+}
 else if(!vars.get("$field.PROJECTTITLE") && vars.get("$field.PROJECTTYPE") && vars.exists("$param.PresetTitle_param"))
-    result.string(translate.text("The Salesproject can only be filled when a company has been specified"));
\ No newline at end of file
+{
+    result.string(translate.text("The Salesproject can only be filled when a company has been specified"));
+}
diff --git a/language/_____LANGUAGE_de/_____LANGUAGE_de.aod b/language/_____LANGUAGE_de/_____LANGUAGE_de.aod
index 85b7bf7f359f6955d17101cbe46fb97b88057151..339dcfe72c2e86887ec31d58658aba1a2297c228 100644
--- a/language/_____LANGUAGE_de/_____LANGUAGE_de.aod
+++ b/language/_____LANGUAGE_de/_____LANGUAGE_de.aod
@@ -14691,6 +14691,10 @@ Bitte Datumseingabe prüfen</value>
       <key>Discount in %0</key>
       <value>Rabatt in %0</value>
     </entry>
+    <entry>
+      <key>The roll out date must be after the project start!</key>
+      <value>Das Roll Out Datum muss nach dem Projektstart liegen!</value>
+    </entry>
   </keyValueMap>
   <font name="Dialog" style="0" size="11" />
 </language>