Deleting Price Lists 
Procedure
Deleting Price Lists
In the SAP Business One Main Menu, choose
Inventory 
Price Lists Price Lists 
.The Price List window appears.
To delete a price list, select the row you want to delete.
On the menu bar, choose
Data Delete Row. To save the change, choose the Update button.
In the confirmation window that appears, choose the Yes button.
NoteBase price lists with dependent price lists cannot be deleted until you cancel the reference between the lists.
Price lists that are entered in the master record of a business partner cannot be deleted.
When you delete a price list, the subsequent price lists in the list move up one position but the price list numbers remain unchanged. The application frees the number of the deleted price list and assigns it to the new price list.
You cannot delete a price list if it is linked, such as to one of the following:
Business partner
BOM (Bill of Materials)
Payment terms
End of the note.