Periodicity: Specifying Automatic Job Repetition

Procedure

To run your job not only at a particular time, but also to repeat it at regular intervals, you can specify a periodicity, or frequency of repetition. This can be specified in Define Background Job in Transaction SM36 ( Start of the navigation path CCMS Next navigation step Jobs Definition End of the navigation path ).

Start the process of specifying when the job will start by choosing the Start condition button.
Choose the button at the top of the Start Time screen for the type of start condition you want to use ( Immediate, Date/Time, After job, After event, or At operation mode) and complete the start time definition.
In order to repeat the job, select the checkbox Execute Job Periodically on the Start Date Values screen. Choose Period Values in order to define the repetition frequency (hourly, daily, weekly, monthly, other period).
Choose Save on the Period Values dialog screen in order to copy the period. The Start Deadline Values window appears.

When a periodic job's start time is After event, the system repeats the job every time the relevant event is triggered.

Start-Time Windows and Job Repetition

If you schedule a job with a start-time window (that is, a range of time rather than a particular time) and want to have the job repeated, the background processing system adjusts the start-time window so that its length remains constant and is relative to the respective start time. If you specify a start-time window of six hours, then each repetition of the job will also have a six-hour start-time window, starting when the job repetition is scheduled.

You cannot use the start-time window to limit the time of day during which a job is repeated. Scheduling a repeatable job to run between 10:00pm and 6:00am does not guarantee that the job will be repeated only within this time period. Rather, the full start-time window will be applied to all of the repetitions of the job according to the rules above.

Example

For example, you schedule a job to run between 10:00 this evening and 6:00 tomorrow morning and to be repeated every hour. The job will be triggered to repeat only after it has started the first time. At 10:00, the job starts. At the same time, the system schedules it again for 11:00. The start-time window for the job has been adjusted to 11:00 and 7:00.

As the system schedules each repeated job, it adjusts the start-time window to remain the length you specified. The repeat job for 1:00am, for example, will have a start time window of 1:00 to 9:00.

To limit the job to the time period between 10:00 and 6:00, you could define a job that schedules separate jobs to run each hour from 10:00 to 6:00. None of the jobs should be periodic.