EK VK Price Fixed
These options apply to the entire position and not to a single price component. They can be found under Edit in the FastTab and then back on Edit. In the window for item editing, the two sliders are located in the “Prices” tab.
Sales price fixed
If activated, it protects the calculated retail price from change due to the final sum calculation of the sales price. Changes to the items can change the price (e.g. a change in the purchase or sale price).
Purchase price fixed
If activated, it protects the calculated purchase price from change due to the final sum calculation of the purchase price. Changes to the item can change the price (e.g. change in the purchase price).