Idoc type for Routing

Hi.

I am configuring the ALE for moving Routing (CAXX transaction code) data from External system to SAP. But could not find the relevent Message type for Routing at BD64. Tried to use the Message type "ROUTING_CREATE01'', but getting error as "Unkown Message type'.

SO, Is there any standard Message type existing in SAP for Routing? If not, should I need to create a new message type for Routing??

Thanks in advance,

~ Guru