Do you want to change the expiration date for Gravity Forms ‘Save and continue’ functionality (standard 30 days)? This is easily done by adding filter in the functions.php file in your theme folder.
Change expiration date Save and continue Gravity Forms
How to change the expiration date in Gravity Forms Save and continue?
Just add the code below to the functions.php file in your theme folder. By changing the $expiration_days value you can set the number of days the form will be saved.
add_filter( 'gform_incomplete_submissions_expiration_days', 'gwp_days', 1, 10 );
function gwp_days( $expiration_days ) {
// change this value
$expiration_days = 365;
return $expiration_days;
}