Again, and it will be my last question on this topic (I apologize if I asked too much questions), I would like to replace the Product name by the SKU only in Woocommerce --> Orders --> Order Details in the backend admin of WordPress.
I didn't find any understandable explanation about how to do this on forums (I have really no skills with php code). I just found that the filter hooks that may be should be used is 'woocommerce_order_items' and 'woocommerce_order_itemmeta' but frankly speaking I don't understand how to use them.
Is it possible to know the correct code to replace the Product name by the SKU only in Woocommerce --> Orders --> Order Details in the backend admin of WordPress? If it is possible to have also some reference to understand about these hooks, I will really appreciate. Thank you