Hi,
Please note that for generating WAD output using BEx query you need to go to Web Application Design and click on New icon to create a new Web Template -> use the relevant Web Item ->after that assign the relevant query as Data Provider.
Can you please clarify regarding whether you have referred the link which I provided in my previous reply here? If yes, can you please clarify regarding whether it was helpful as it is not clear.
If not, please do refer the link and explanation which I provided in my previous reply here regarding this and check whether it helps you .
Thanks & Regards,
Sapna