Index: trunk/docs/services/howtos.txt
===================================================================
--- trunk/docs/services/howtos.txt	(revision 398)
+++ trunk/docs/services/howtos.txt	(revision 399)
@@ -15,4 +15,10 @@
     :depth: 3
     :backlinks: top
+
+Common informations
+----------------------
+
+.. Note:: The service has to **return 3 if the process run successfully instead it 
+	  return 4** if the process end with an error.
 
 Python
@@ -124,5 +130,4 @@
 The return statement has to be an integer: corresponding to the service status code.
 
-The module should **return 3 if the process successfully ended otherwise it should return 4**.
 To add a message for the wrong result you can add the massage to ``conf["lenv"]["message"]``,
 for example: