About Effective Dates for Pricing Line Items
You can create effective dates for individual line items in a price list, cost list, discount matrix, or component-product price adjustment. The application prevents you from entering overlapping effective dates for the same line item when you enter effective dates using the New Effective Date button, as described in Giving a Product Multiple Prices with Different Effective Dates.
For example, if a price list has a line item for Product X with a price that is effective from January 2005 through June 2005, then do not enter another line item for Product X with a price that is effective from March, 2005 through December 2005, because the product would have two different prices during several months.
This topic describes several scenarios that show how the application resolves overlapping dates.