What is Field List in Salesforce triggers, and how can I use it?
If your Salesforce has been heavily used over a long period of time, heavy customizations may have been iterated over the years, and the number of custom fields may amount to a large number. This may confuse you when you attempt to connect your Salesforce objects data with other application.
With the Field List option, you are may easily choose and specify only the fields that you'd like to see in the Output schema. Simply name the fields in the Field List, and then only the fields that are needed will appear on the App Data, or the Output schema, on the right-hand side of the recipe.