When creating a Purchase Order the price is picking automatically from the last Purchase Order.
Settings in the SPRO to deactivate default net price.
Path- SPRO-Materials Management-Purchasing- Define Default Values for Buyers-Settings for default values.
Copy from the standard one and and give a name as default values.
Select the Line item click on Details,
Got to Price adoption and select the radio button Do not copy…Save it
To make default in the Purchase Order go to system from the menu screen and select User Profile and select own data
Select the tab Parameters and enter Parameter ID as EVO press enter and save.
Next time when a purchase Order is created the system will not suggest a default value.