If you come across a scenario where you want to restrict user from creating a sales order for net price less than minimum price then sage X3 provides a standard functionality Non block ctrl price,profit,qt.

Navigation:

Setup –> General parameters –> Parameter Values

Sales – Authorization —  SDACLOK (Non block ctrl price,profit,qt )

Set  Non block ctrl price,profit,qt as “no”.

Set minimum price for the product at Product – Sales Tab

Now when we try to create SO for net price less than minimum price we get a blocking message.