Reports server returns error rep-56092 using destination BLOBDESTINATION

Dear Community,

For our adf application we want to put de reports directly into the database. We used the solution provided by oracle the so called BLOBDestination. We have implemented the solution as Oracle describes.

We have cheched and double checked the implementation and it should be correct. From the adf application an url is constructed with the params and this works for every other destination type such as file.

When I want to invoke the report I get the error rep-56092 on the reports server and of course the report is not inserted in the tabel:

This is the construction I use for desname: