Managing Period and Volume Discounts 
The procedures below describe how to manage special prices in price lists.
Procedure
Defining Date-Dependent Special Prices for a Price List
From the SAP Business One Main Menu, choose
Inventory 
Price Lists Period and Volume Discounts 
.In the Period and Volume Discounts window, in the Price List dropdown list, select the price list for which you want to define special prices.
NoteAfter you enter an item number, SAP Business One automatically displays the appropriate item description. The usual search functions are available to help you find an item in SAP Business One.
End of the note.To specify the item or items, do one of the following:
Choose the Add Items button.
The Special Prices – Items – Selection Criteria Window appears. You can use this window to copy a range of selected items in one step.
Place your cursor in the Item No. column and click the Tab button. In the List of Items window, you can select items to add.
In the Item No. column, enter the number of the item you want to add.
To edit the date-dependent special prices, double-click the row number of the required item.
The Period Discounts Window appears.
To confirm your entries, choose the Update button.
To save the special prices, in the Period and Volume Discounts window, choose the Add button.
NoteIf you expand the lines for a special price, the special price is displayed in blue in the Period and Volume Discounts window.
End of the note.
Copying Price List Item Details
From the SAP Business One Main Menu, choose
Inventory Price Lists Period and Volume Discounts .In the displayed Period and Volume Discounts window, double-click a row to open the Period Discounts window.
In the Price List dropdown list, select a price list.
Select an item that is defined a period or volume discount.
Choose the Copy Discounts button.
This enables you to copy the details of a special price item for all the other special price items in the Period and Volume Discounts window.
Select the following options to define the copy type:
All Items Displayed in the Period and Volume Discount Window
SAP Business One copies the selected item details for all items in the specific price list.
Items Displayed without Period or Volume Discount
SAP Business One copies the selected item details only for items that do not yet have any item details.
To confirm the copy definition, choose the OK button.
NoteIf you have also defined quantity-based special prices for this line, this data is also copied.
End of the note.To save the copied item details, in the Period and Volume Discounts window, choose the Update button.
Defining Quantity-Based Special Prices for a Price List
From the SAP Business One Main Menu, choose
Inventory Price Lists Period and Volume Discounts .The Period and Volume Discounts window opens.
In the Price List dropdown list, select a price list.
Enter items to the list in either of the following ways:
In the Item No. column, specify an item number. You can add more items by repeating this action in the rows below the first one.
Use the Special Prices - Items - Selection Criteria Window.
Choose the Add Item button.
The Special Prices - Items - Selection Criteria window opens.
Specify the relevant data and choose the OK button.
The items you specified are added to the list.
Double-click the # field of the required item row to open the Period Discounts window.
In the Period Discounts window, select a row by double-clicking the # field again.
The Volume Discounts for Price List window appears.
Edit the data and choose the Update button.
To confirm your entries, in the Period Discounts window, choose the Update button.
In the Period and Volume Discounts window, choose the Update button.