In the UpMenu admin panel, you can turn on the option of collecting data for an invoice. Thanks to this option your customers will be able to select the invoice options when ordering online.
In the "Order form" section, turn on the option “Collect invoice data” by moving the slider.
Your customers will be able to choose a receipt or invoice at the moment of placing an order.
Once a customer has placed an order and entered the invoice data, you can find the details in “Orders”.