Appian Lesson: QYD_L6_E1

Hi Everyone,

I am new to Appian and development in general, so, thank you for taking the time to help!

In the Query Your Data Lesson 6_E1, we are asked to create a aggregate query in order to display vehicles by make.  I am able to display the results, however, the results in the drop down menu show the alias and also the entire results in brackets.  I am trying to have the drop down menu only display the vehicle makes.

Expression Rule:

At the beginning of the lesson in the solutions, it says that I am to use a local variable function and gives this as an example or maybe even as the solution:

However, when I tried to wrap the previous code in the function and then index it through .data, I get an error. 

So, then I just duplicated my previous expression rule and basically used this exact code and still get an error. 

Can someone help me understand indexing everything after the .data and what I am missing?

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