Include Posts of a Custom Post Type in the Embed URL › Post/Page Rule
Code
Filename: gpls-include-cpt-in-embed-url-post-page-rule.php
<?php
/**
* Gravity Perks // Nested Forms // Include Posts of a Custom Post Type in the Embed URL › Post/Page Rule
* https://gravitywiz.com/documentation/gravity-forms-nested-forms/
*/
add_filter( 'gpls_rule_get_post_args', function( $args ) {
// Change "my_custom_post_type" to the slug of your custom post type.
$args['post_type'][] = 'my_custom_post_type';
return $args;
} );