Thanks for checking.
I have 2 parameters in the SQL, I'm prompted for them when I preview or run the report. Yet if I use the .tdr file in an automation I'm not warned about the existence of parameters/variables in the file. Running that automation will result in empty reports and setting variables for these parameters in the automation does have these parameter values define the results of the report.
Is there a way of specifically defining these parameters in Data Reports that I missed?
ETA. I found a way to 'define' parameters by right clicking the Parameter symbol in the field list window. These Parameters don't seem to influence the run-time parameters from the SQL statement. When executing the report I now am prompted for parameters twice:
Only the Bind-variables seem to be used in the the execution of the report.