The RETRO parameter is used to control situations where the computer has not been working for a day or more due to holiday, hardware failure, and so on.
When such situations occur, it is necessary to instruct Control-M whether the job is to be retroactively scheduled for the days when the computer (or Control-M) was inactive.
When Y is specified for the RETRO parameter, job orders are placed in the Active Jobs file for all the days the job ought to have been originally scheduled. Scheduling occurs from the last scheduling date to the current working date, provided that those days were included in one of the Basic Scheduling parameters (DAYS, DCAL, and so on). Each job order placed on the Active Jobs file is associated with a different original scheduling date. For additional information see MAXWAIT: Basic Scheduling Parameter.
When N is specified for the RETRO parameter, the job is scheduled only if the current working date is a date on which the job is normally scheduled.
The RETRO parameter cannot be used with the MINIMUM and PDS parameters, nor in group scheduled jobs; if specified in Group scheduled jobs, the parameter is ignored.
