All Measure Values are not displaying between two given dates

Hi,

I have an issue with one of my Webi Reports.

For the report I have used Prompt date using UserResponse() and created a start date for the Prompt date using RelativeDate().

Actually my requirement is MTD report where I want to display the Measure value between the above mentioned dates. But whenever I use the these between dates along with the measure I am not getting all measure values for the material numbers in the report, its showing some measure values only even though its having values.

But whenever I use the Report Filter in the Webi I am getting correct values, ie, I used the Calendar Day dimension directly in the Report Filter with between operator.

what could be the reason for this...........

Plz help me in this.

Regards,

ArunKG