How To Fix RU493 - Invalid entry: Job repetition can lead to infinite loop

SAP Error Message - Details

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 493

• Message text: Invalid entry: Job repetition can lead to infinite loop

What causes this issue?

You have entered a value for "Maximum number of goods movements
selected" and activated the indicators "With incorrect goods movements"
and "Repeat job". This setting can lead to an infinite loop and is thus
not permitted by the system.

System Response

If the value Y is entered for the selection parameter "Maximum number
of selected goods movements" then Y values are read in from the table
AFFW (table for goods movements in background and incorrect goods
movements). If the report is carried out with incorrect goods movements
then it is possible that the report has selected Y incorrect AFFW
records that again lead to an error.
If the report is called up again then it would select the same values
again. Processing the AFFW table is thus not possible and results in an
infinite loop.

How to fix this error?

If you want to carry out a report "Maximum number of selected goods
"movements" the you should deactivate either "Repeat job" or "With
incorrect goods movements".

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RU493 - Invalid entry: Job repetition can lead to infinite loop ?

  The SAP error message RU493, which states "Invalid entry: Job repetition can lead to infinite loop," typically occurs when there is a configuration issue with a background job in SAP. This error indicates that the job's scheduling parameters are set in such a way that it could potentially create an infinite loop, meaning the job would keep rescheduling itself without a proper end condition.
  Cause:
  
  Job Scheduling Configuration: The job may be configured to repeat at intervals that are too short or in a manner that does not allow for proper completion before the next execution starts.
  Incorrect Time Settings: If the job is set to start at a time that overlaps with its own execution time, it can lead to an infinite loop.
  Missing End Conditions: The job may lack proper conditions to stop or terminate after a certain number of executions or after a specific date.
  
  Solution:
  
  
  Review Job Configuration:
  
  Go to transaction code SM37 to check the job details.
  Look for the job in question and review its scheduling parameters.
  Ensure that the job is not set to repeat too frequently or in a conflicting manner.
  
  
  
  Adjust Repetition Settings:
  
  Modify the job's repetition settings to ensure that there is enough time between executions.
  Set a maximum number of repetitions or a specific end date to prevent infinite loops.
  
  
  
  Check for Overlaps:
  
  Ensure that the job's execution time does not overlap with its next scheduled start time.
  If necessary, adjust the start time or duration of the job.
  
  
  
  Test the Job:
  
  After making changes, test the job to ensure it runs as expected without triggering the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on job scheduling and configuration.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM37: Monitor background jobs.
  SM36: Define and schedule background jobs.
  SM21: Check system logs for any related errors or warnings.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Best Practices: 
  
  Regularly review and audit background jobs to ensure they are configured correctly.
  Implement monitoring to catch potential issues before they lead to errors.
  
  
  
  By following these steps, you should be able to resolve the RU493 error and ensure that your background jobs run smoothly without the risk of infinite loops.