--- a/docs/administration/adding_system.rst	Tue Mar 25 09:36:33 2014 +0200
+++ b/docs/administration/adding_system.rst	Wed Apr 30 14:49:05 2014 +0300
@@ -1,4 +1,11 @@
 .. _add_new_system:
 
-Adding systems
-==============
+Systems
+=======
+
+
+Deleting systems
+----------------
+
+You cannot delete a system if it has either *channels* or *products* connected to it.
+