The Product Description Text is part of WooCommerce.

You can translate it using Translation Plugins.

If you need to edit in directly in code add this code in functions.php

add_filter( ' woocommerce_product_description_heading', 'custom_product_desc' );

function custom_product_desc($text){

return 'Custom Product Description';

}

Let me know if it’s this what you need
Thanks

• This reply was modified 5 years, 10 months ago by Ludjon.