Thanks for the reply. You are correct, having the information in two places is not smart. I ended up creating a custom shortcode and then using the shortcode to show the shipping time on produt page.
// ACF Brand Shipping time --> product page
add_action( 'woocommerce_before_single_product', 'boazmarketing_shippingtimeshortcode' );
function boazmarketing_shippingtimeshortcode() {
$terms = get_the_terms( $product_id, 'valmistajat' );
foreach ($terms as $term) {
$product_cat = $term->term_id;
}
$brandid = "valmistajat_". $product_cat;
$shippingtime = get_field('toimitusaika', $brandid);
return $shippingtime;
}
add_shortcode('valmistajan_toimitusaika', 'boazmarketing_shippingtimeshortcode');