JCO - Application Server

Hi

I am trying to make a JCO connection through an application server (single server) instead of message server (load balanced).

I included the application Server in SLD administration.

When I reference this application Server in Webdynpro configuration manager, in JCO connection, all parameters seem to be ok, but I got the error message:

CIM_ERR_FAILED MAXLEN(2) violeted for property AppServNumber.

I filled application server number in the field labeled "number"....should I put this information in some another place too??

Any ideas?

Regards.