In order to issue an invoice for a person as a legal entity you must go to the Billing module and then access the sub-category "Parent Invoices". At the top you will find a "New Invoice" button. After you click on it and select the child whose parent will receive the invoice, a draft of the invoice will open. On the right side, below the calendar, the customer data can be found, and next to their name is a "pencil". By clicking on "pencil" a window will open with the data of the parent. At the top of the window you will select that the billing be done for a legal person and thus the fields will be modified, and then CUI / CIF, IBAN and the name of the currency on the invoice will be found.
