Sending Shipping information using ALE to third paty system

Hi,

I need to send shipping information (SHITTP)from SAP system to a non-SAP system using ALE. RFC connection is already established. When I try to create a partner profile for the third party system it accepts only patners with partner functions Customer and Vendor, and not LS.

How do I configure ALE to send SHITTP IDoc from SAP system to legacy system ( partner function LS )...?

Thanks in advance.

Srinath