Move billing address just below shipping address and assign billing address from shipping step in Magento2.

Show customer previous order data in checkout and auto select previous shipping address on checkout page Magento2.

Add custom validation for phone number in shipping address, billing address and Edit Address form Addressbook at frontend in Magento2. Also add additional class to telephone field. Add flag dropdown to telephone fields and auto detects user's country based on ip and preselect that country flag with International Telephone Input JS https://intl-t…