Hi amy yoste , which version of Incorta are you using and is it a flat table? If you are using v4.3.x and it is a flat table, you have the option to add the following setting to the engine.properties file:
engine.allow_formula_sorting_in_flat_table = true
This parameter is false by default due to its performance implications. Ideally the calculation would be persisted as a formula column in the physical schema for best performance.