You can add this directly to your theme template files (like page.php or single.php ).
Ensure the form is "Active" in the Gravity Forms menu. Also, check that the id in your shortcode matches the ID in the dashboard. gravity forms shortcode
He opened a new tab and typed another shortcode, this time in the confirmation settings. [gravityform id="1" field_values="entry_source=WebPortal"] You can add this directly to your theme