Copying Sales and Purchasing Documents 
SAP Business One enables you to create target documents directly from base documents. For example, you can create a delivery directly from the sales order. In that case, all the data that you entered in the sales order is automatically copied to the delivery.
You can create a target document for an added document in status Open only. When you create a target document, SAP Business One copies all its open rows.
Note
When you work with a multi-currency business partner and perform the transaction in a currency different from the default one, the system selects this currency in the relevant target document.
Procedure
John, the sales employee, submits a sales quotation for one of his customers. A week later, the customer calls and wants to order the selected items. John copies the sales quotation to a sales order.
Choose
Sales - A/R
Sales Quotation 
.The Sales Quotation window appears.
Find the relevant sales quotation for the customer.
Choose
Copy To Order
.The Sales Order window appears with the copied details of the sales quotation.
Update the sales order, if necessary, and choose Add.
Two days later, the ordered items arrive. John opens the Delivery window to create a delivery and to send the items to the customer.
Choose
Sales - A/R
Delivery .The Delivery window appears.
Enter the code or name of the customer.
Choose
Copy From
Orders and select the relevant
sales order.The Draw Document Wizard appears. For more information, see Drawing Document Wizard.
Update the delivery, if necessary, and choose Add.
Result
You have created the relevant documents.
Note
When you copy one or more base documents to a target document, SAP Business One observes the following rules:
If all base documents have the same value, that value is copied to the target document.
If base values are different, the default value from the business master data is used.
If no default value exists for the business partner, no value is copied to the target document.