In properties using multiple invoice sets, the user will be asked which invoice set is to be applied when carrying out a rebate using rebate levels 4 and 6. In addition, the user may have to specify a classification with certain invoice sets.
The registry settings required in connection with multiple invoice sets are described in section Administration – Registry.
The classification can, for example, specify that the rebate is carried out because of a mistake or that it is a goodwill gesture following a guest complaint. For further information on the classification of multiple invoice sets, see section Front Office – Settlement.