Yame-

<?php
/* Capture CF7 data */
add_action( 'wpcf7_mail_sent', 'wpcf7_capture_data' );

function wpcf7_capture_data( $contact_form ) {
    
    $submission = WPCF7_Submission::get_instance();
  
    if ( $submission ) {
        $posted_data = $submission->get_posted_data();

Yame-

<?php
/*
Add this code to your functions.php
*/

add_action('woocommerce_checkout_update_order_review', 'get_customer_details');
function get_customer_details($post_data){
	global $woocommerce;
	
	// Details you want injected into WooCommerce session.