No report data available

Hello pros,

I have a problem with a DataSource that I created using SAP Cloud Application Studio (1602) :

Following steps to reproduce my "issue" :

1. I created a BO using SAP Cloud Application Studio (SDK). This BO just contains some fields in the Root node.
2. I created a Service Integration (XML Input) still using the SDK
3. Using the Silverlight UI, I imported  successfully thousand of rows of this BO (I have a workcenter which allows me to check the import)
4. Then, using the SDK, I created a DataSource of this BO
5. When I try to check the Preview (Silverlight / Business Analytics / Design DataSource) of my DataSource, I got the following message "No report data available to display ; check the selection". Obviousely, I did not put any filter on.

I tried to check with my technical user or an admin user, result is the same. What I'm doing  wrong ?

Thanks for your help.

Regards,

Michael NEVES