Error while creating service for BW query

Hi All,

          I am creating service in gateway system by using BW query.

          I had created service using Entity Type -> Redefine -> BW query Service

          It is generated successfully but when i am running through Gateway Client, It is throwing error, given below

          " The argument '67.504.82831' cannot be interpreted as a number."

          All properties are string but still it is giving error in number.

          I am using Netwiever Gateway 7.3.

         Kindly advise, what could be issue and , how we can analyse.

Thanks in Advance.

Regards

Vivek