You can use a Reference Data file to provide the values for a dropdown field so you don't have to type them in manually. For example:

• Select from a list of customer names.
• Select from a list of weather conditions.
• Select from a list of employee names.

Autofill a field based on a value chosen in a previous field. For example:

• Select from a list of parts and autofill price, manufacturer, warehouse location, and item number.
• Scan a barcode and use Reference Data to populate all of the info about that item or product. 
• Select a customer’s name from a list and automatically populate their address, phone, email, etc.

The parent field filters the next field to choices specific to the first and the second dropdown filters subsequent fields to even more specific choices and so on. For example:

• Select a car make from the first dropdown. The next dropdown will then show only the models associated with that make. The third dropdown will only include trims associated with that model. Subsequent dropdowns can continue to filter out features, years, colors, etc. associated with previous choices.
• Select an apartment complex from the first dropdown. The next dropdown will show only the buildings from that complex. The third dropdown will only list the floors of that building so that in the fourth dropdown, the user will only see the unit numbers of the floor chosen. Finally, each unit can automatically populate the correct layout.