Excluding blank section/filtering recipients in Webi Publications

I have created publication based only on Excel file.

Source report got one tab where I have created some kind of personalised message per contract.
Put section on Contract IC and WEBI report is showing 9 pages (each page for each unique contract ID where v_filtr_date=1).

Source excel cointains 14 rows

We need to send mailing if the [v_filtr_date]=1 so the correct number of emails is 9.

as you can see on attached image filter works fine:

but publications is sending 14 emails. Is there any possibility to restrict it?
Because in such way is sending emails with no data and it's unacceptable.

SAP BO Platform 4.3 Support Pack 1

Thanks in advance