WooCommerce redirect 'order received' page to ACF URL

Question

I use the following code in my functions.php to redirect my WooCommerce 'order received' page to an custom URL:

// Redirect WooCommerce Order Received Page to Post
add_action( 'woocommerce_thankyou', 'rwl_redirectcustom');
function rwl_redirectcustom( $order_id ){
    $order = wc_get_order( $order_id );
    $url = 'https://my-website.com';
    if ( ! $order->has_status( 'failed' ) ) {
        wp_safe_redirect( $url );
        exit;
    }
}

Now I want to redirect instead to an static URL 'https://my-website.com' to a dynamic URL which is stored in an ACF field called 'paywall_post_url' of a post.

I have tried this

$url = get_permalink( get_post_meta( 'paywall_post_url' ) );

But this didn't worked. Where is my mistake?

Thanks

Answer 1

get_post_meta() requires you to pass the post ID and meta key.

you want to use the acf functionget_field()

$url = get_permalink( get_field( 'paywall_post_url' ) );

this is if you saved the field as a post ID. otherwise it should be:

$url = get_field( 'paywall_post_url' );