Getting Data through Web Service

Dear All,

We are using Dashboards 4.0 SP4,BW 7.4.

While using web service connection for block of web intelligence report i have mapped Table row of GetReportBlock_<rep Name> to the same number of rows in Excel spread sheet of designer.

Mapped header cells to the same number of cells in Dashboard designer spreadsheet.

But while previewing the dashboard i couldn't able to see any data for the mapped cells.How to get the data.Can you please suggest the steps.

Regards,

Venkat