I agree with above and want to visualize this little bit more as there are 2 ways of doing this:
If you have a measure which needs to be produced accross 2 dimensions (for example Sum of sales by Country & Region) then you need to build a table with Dimensions: Country and Region and Expression Sum(Sales) and use this object in your Page Entity in NPrinintg PowerPoint template. Using this solution will avoid creating empty charts for combination where measure does not return value.
Second solution is to concatenate 2 fields in script and using concatenated field in your page. This solution will go through all values in the field regardles of it producing value for measure or not.
hope this helps!
cheers Lech, When applicable please mark the correct/appropriate replies as "solution" (you can mark up to 3 "solutions". Please LIKE threads if the provided solution is helpful to the problem.