Each macro in this chapter creates a SAS output data set. You can provide the name of this data set by specifying the OUT= parameter in each macro. If you do not provide a name when calling a postprocessing macro, the macro creates an output data set named _BOMOUT_. This data set contains the same variables as the Indented BOM data set, except for those variables that are specified in the DROP= parameter. Some macros add new variables to the output data sets for particular information, such as quantity used and quantity needed, that are not contained in the Indented BOM data set.