Product SetType Problem in WebUI

Hello ,

I face a strange problem where i get a error  "Define Component Usage ZEXTPRODUCTID" . But the usage is defined in the component PRD01OV.  I can see that in the run time repository. But during debugging, the system does not retrieve this USAGE ZEXTPRODUCTID when it queries the repository to retrieve the details. Why would this happen?

Also which table at the backend stores the Component Usage information for component  PRD01OV. I can atleast cross check and see whether the usage is persisted in the backend?

Thanks

Abishek