Modules:Selfcheckout BestDealCase
Self Check Out can be complemented with Best Deal Case module.
Configuration is the same and in this case for SCO when the Finish and Pay button is tapped, Best Deal Case algorithm is executed to try to get the best possible discount. If a better discount than the previously calculated one is found, ticket is modified to apply it.
For more information please check: http://wiki.openbravo.com/wiki/Retail:Promotions_Best_Deal_Case