How to use merge fields
Merge fields are placeholders that can be added to your form, media inputs, repeatable group headers, link fields, data sets, data maps, form actions, reports or email to automatically populate information from a data source. For example, you could select a date field on a form to add to the Form Description field.
In the following illustration the Date_of_Accident field has been added to the Accident Report form description in the form designer.
When this form is saved, the date of the accident appears with the form under the Saved/received forms tab to help identify it. When submitting the Accident Report form from the app, the date of the accident is part of the form description: