Extracts and submits a form from a form in the previous request. This option should be used when a scenario includes the submission of a form containing a dynamic hidden field. The form from the results of the preceding request (referrer) are dynamically extracted, allowing the dynamically extracted values to be submitted.
Using this option allows defining a target form on which to work. Selecting the form is done through the button in the
Extracted Form section, which displays a new window with further options. Once the form has been selected, the forms various elements can be used in the request to be submitted (URL, parameter value).