Correct Product Cost on Prior Year Purchase Invoice

Use the following steps to correct the purchase price or cost of a product that was purchased in the previous year.

  1. Add a new Purchase Invoice selecting the product twice.
  2. On the first line, enter a negative quantity with the incorrect price.
  3. On the next line, enter a positive quantity at the correct unit price.

This creates an A/P bill for the difference and corrects the Average Cost and Last Cost for the product.