How to generate something in a webi report to email even if no data found?

I have created a webi report on top of a universe related to our project managment system. Each Monday I want the report to run automatically and email the output in Excel for projects classified incorrectly that need to be fixed. The problem with the report is that some weeks the data is all correct so the query finds no data, and sends out the report without just the column headings. Those who receive the report are then assuming that was issue in how report ran and problems exist with the data. Is there a way to make the Excel report document display something along the lines of "No bad entries found"?