To start creating FACT Mappings with NitroX, start Test Builder for a Test Case and map your Salesforce Custom Lightning Web Components or Screen Flows. There’s no change to the existing user experience. You right-click on the element you want to interact with and select Add to Test Case. If the element meets the NitroX criteria and resides in a Custom Lightning Web Component or Screen Flow, then the Test Build editor displays the sections relevant to NitroX mapping.

Above: Snapshot of Test Builder.

Set the desired values for testing the element and select Add to save the Test Step or Add & Do to save and execute the Test Step. You’ll notice a new Custom FACT Mapping has been added to the /fact directory in your project. This component maps the Custom Lightning Web Component on the page, the relevant structure, and the selected element.