We require a valid phone number to be included with the shipping address when an order is sent to us. However, WooCommerce doesn’t collect this information by default. If a phone number is not included with the shipping address, we will automatically use the billing phone number that the customer provides.If you wish to require that customers enter a phone number with their shipping address, you will need to install a 3rd Party plugin. F4 Shipping Phone and E-mail for WooCommerce is a good free plugin you can use.First, install and activate the plugin to your WordPress website. Next, navigate to the WooCommerce Settings page. Select Accounts & Privacy, then scroll down to Phone and select Required.Finally, scroll down to the bottom of the page and click Save Changes.