About Expiration date

hi to everyone.

m trying to setup the expiration date in navision 4.0 but its not working…can u help me out in this… how to setup expiration date…my requirement is while posting sales order it must show me an error that the item is expired…for this type of requirement wat kind of setup is required…ur reply wuld be appreciable…

You’ll need to start with item tracking and work from there.