The Write Variables option ensures that the “Package Action” logs the variable values into the “Action vars before log file” before the action is executed and logs the updated variable values into the “Action vars after log file” after the action completes.
It is usually used for debugging and not recommended for production environment.
Specifies which variables will be set once action execution is completed
Variables <Transformation Processed>,<Transformation Errors>,<Transformation Rejected>,<Transformation Records/Sec> are created for every data reader (<Transformation Processed 1> etc)
<Transformation Writer Errors> a total number for all data writers
<Transformation Error> holds generic error description (file not found for example)