The cursor is placed in this field when you open the procedure. Here you select an operation report number. This report number is displayed on the order documents for each operation, both in number form and as a bar code, and can be seen in the Order List - Manufacturing. A report number contains information about order number + part number + operation.
If you use the PopUp feature or the F4 key, you can search by report number or manufacturing order number. By using F3 you can also search by purchase order number for subcontracts.