I've got my Adwords API set up and I have gone through the getting started process.
Now, I am trying to set the demographic targeting criteria (Age) for a search campaign and I am getting this error: CriterionError.CANNOT_ADD_CRITERION_TO_SEARCH_PLUS_CAMPAIGNS
Q1) Is this something that is not currently supported?
Q2) Is there a way for me to enable it for my campaign (say as a beta)?
Q3) Any ideas on when this will be supported?