In the admin panel it should be possible to add new mandatory fields when a customer or guest places an order, for example, tax number and telephone number. And the vat number so i can make the invoice.
Sometimes a customer registers and does not fill in the phone and then it is annoying because I have to send an email asking him to tell me his phone number, wait for his answer, because our delivery service company requires the address but also the phone number to make the delivery.