Navigation Guide for Creation of Update of a field workflow
In the Edit mode of the application, when the + button is clicked, the screen shows the different components that can be created in the application. Choose Workflows and then choose On a form event option. Select the Edited radio button in Run when a record is  option. Then choose Update of a field option in the When to trigger workflow  dropdown.

Let's assume you have an Incident Management application that is used to register, track, and resolve incidents or issues in your business. In this application you have an  Incident  Details form that has information on the issue, the details of the user who raised the issue, the support representative who has been assigned the incident, and the status of the incident. The Incident Status  field is a choice field with Opened, Assigned, In Progress, On-hold, and Resolved as options. You can write script for on update of this field. If the Status is changed, you can write a script to send an email notification to all the email address fields included in the form, providing information that the status has been updated.

Related Topics

• Configure deluge script on update of a field