diff --git a/msg/customMsg.txt b/msg/customMsg.txt
new file mode 100644
index 0000000000000000000000000000000000000000..db52558197f27361e65e54f9ec750b7576221fcf
--- /dev/null
+++ b/msg/customMsg.txt
@@ -0,0 +1,32 @@
+Anleitung, um eine ROS2 Msg oder Srv einzurichten.
+
+1. CMakeLists.txt
+
+find_package(rosidl_default_generators REQUIRED)
+
+rosidl_generate_interfaces(${PROJECT_NAME}
+  "msg/Num.msg"
+  "srv/AddThreeInts.srv"
+ )
+ 
+ 
+2. Package.xml
+ 
+ 
+ <build_depend>rosidl_default_generators</build_depend>
+
+<exec_depend>rosidl_default_runtime</exec_depend>
+
+<member_of_group>rosidl_interface_packages</member_of_group>
+
+
+3. Colcon Build
+
+
+4. Include
+
+from tutorial_interfaces.msg import Num    # Python
+
+oder 
+
+#include "tutorial_interfaces/msg/num.hpp"     // C++