We need to combine multiple sales orders and multiple deliveries into one monthly Invoice.
All information about customer, delivery location and other details will remain the same.
We will receive different orders from our customer at different dates for different items.
We will issue "Sales Order" and "Delivery" for each order, during one month.
At the end of the month, we would like to be able to send only one invoice to our customer.
We are using SAP 9.2, please give detailed information about the steps to achieve the above if possible.