System-defined mapping outputs are mapping outputs that each mapping generates. You do not have to configure the aggregation for system-defined mapping outputs. You can pass system-defined mapping outputs to workflow variables.
A mapping returns the following types of system-defined mapping outputs:
numberOfTargetRows
The number of rows that the mapping wrote to the target.
numberOfSourceRows
The number of rows that the mapping read from the source.
numberOfErrorRows
The number of error rows that the mapping generated.
Configure the workflow variables to assign the system-defined mapping outputs to on the
Output
tab of the Mapping task
Properties
view.
The following image shows the system-defined mapping outputs on the