Unable to pass non-time parameter in Dashboard

Hi,guru:

    I'm woking on building a Dashboard from Query as a Web Service, which comes from the universe directly based on SAP BW query, If i hvae just one parameter such as Calendar Month or Calendar Year, I can see the result restricted by my input parameter, but when I add a parameter which based on Non-Time characteristic such as 0COMP_CODE, after input the needed value such as 1000, I will get nothing but a message "no data to fetch".

   My Dashboard version is BI 4.0 SP4, and my BW version is SAP BW 730 SP0007.

Best Regards

Martin Xie