Webdynpro Accessing ABAP Functions

Hi,

I am getting problem at when i am connecting to Backened R/3.

I config the SLD,created the Technical system in SLD,Config the backened R/3 system used RZ70,SLDAPICUST,smlg Everything performed.I can able to run all RFC programs in SLDAPICUST.

I have given the correct Logon group.

But during JCO testing in WebDynpro Administration tool.I am getting the following error.

<b>com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: Name or password is incorrect. Please re-enter</b>

I Have given the correct logon parameters.Is anywhere i missed the Parameters.

Plz urgent.

Regards

Usman