How To Fix RSM1100 - Activation already scheduled or currently running; no 2nd scheduling

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM1 - Messages for AWB, Scheduler and Monitor (new)

• Message number: 100

• Message text: Activation already scheduled or currently running; no 2nd scheduling

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM1100 - Activation already scheduled or currently running; no 2nd scheduling ?

  The SAP error message RSM1100 indicates that an activation process is already scheduled or currently running, and therefore, a second scheduling of the same process is not allowed. This error typically occurs in the context of data activation in SAP BW (Business Warehouse) or when dealing with data loading processes.
  Cause:
  
  Concurrent Activation: The most common cause of this error is that an activation process for the same data is already in progress. SAP does not allow multiple activations of the same data to prevent data inconsistencies.
  Long-Running Processes: If the previous activation process is taking longer than expected, it may lead to this error when you attempt to schedule another activation.
  System Locking: Sometimes, system locks or issues with the process chain can lead to this error.
  
  Solution:
  
  
  Check Running Processes: 
  
  Use transaction SM37 to check for any running jobs related to the activation process. Look for jobs that are currently active and see if they are related to the data you are trying to activate.
  If you find a job that is stuck or taking too long, you may need to analyze it further or terminate it if necessary.
  
  
  
  Wait for Completion: If you find that an activation is currently running, the simplest solution is to wait for it to complete before attempting to schedule another activation.
  
  
  Review Process Chains: If you are using process chains, check the status of the process chain to ensure that it is not stuck. You can do this in transaction RSPC.
  
  
  Check for Locks: Use transaction SM12 to check for any locks that might be preventing the activation from completing. If you find locks that are no longer needed, you can delete them.
  
  
  Restart the Process: If the activation process is stuck and you cannot determine the cause, you may need to cancel the current process and restart it.
  
  
  System Monitoring: Regularly monitor your system for long-running processes and performance issues to prevent this error from occurring in the future.
  
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Job Monitoring
  RSPC: Process Chain Monitoring
  SM12: Lock Entries
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  Documentation: Review SAP BW documentation for best practices on data activation and process chain management.
  
  By following these steps, you should be able to resolve the RSM1100 error and successfully schedule your activation process.