Calling fnd_gfm.authorize(null) for a call to FND_FNDFLUPL to upload excel file to form calling fnd_

This call

access_id := fnd_gfm.authorize(null);

gets me the access id and a record in fnd_lobs access

The call to fnd_gfm.get_file_id(access_id) returns null

This is done in oracle form

Any help is really appreciated

Thanks

Michael