All data rew fetch from the data source/ excel in soap UI Pro

Hi,

I am new to soap UI pro and when i tried using datasource ( Grid/Excel) for parameterization. I have associated datasource with the request and even set the no of rows to be fetch from datasource using options.eg :- ${DataSource#AccId}. but it is not fetching data from the DS and throwing exception in the response. I have also added datasource loop to take care of the iterations.

Did i miss anything here? Please guide.