How To Fix MDQ_DATA_EXCHANGE045 - Job &1 already running

SAP Error Message - Details

• Message type: E = Error

• Message class: MDQ_DATA_EXCHANGE - MDQ Data Exchange Message Class

• Message number: 045

• Message text: Job &1 already running

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDQ_DATA_EXCHANGE045 - Job &1 already running ?

  The SAP error message MDQ_DATA_EXCHANGE045: Job &1 already running typically occurs when a background job that is supposed to execute a data exchange process is already in progress. This can happen in various scenarios, such as when a job is scheduled to run at regular intervals, and the previous instance has not yet completed before the next instance is triggered.
  Cause:
  
  Concurrent Execution: The job is scheduled to run again while the previous instance is still executing.
  Long Processing Time: The job may take longer than expected to complete due to data volume or performance issues.
  Job Scheduling Issues: There may be misconfigurations in the job scheduling settings that lead to overlapping executions.
  System Performance: High system load or resource contention can delay job completion.
  
  Solution:
  
  
  Check Job Status: 
  
  Go to transaction code SM37 to check the status of the job. Look for the job name indicated by &1 in the error message.
  If the job is still running, you may need to wait for it to complete.
  
  
  
  Terminate the Job: 
  
  If the job is stuck or taking too long, you can terminate it from the SM37 transaction. Select the job and choose the option to cancel it.
  
  
  
  Adjust Scheduling: 
  
  Review the scheduling settings for the job. Ensure that the frequency of execution does not overlap with the expected duration of the job.
  Consider increasing the time interval between job executions.
  
  
  
  Optimize Job Performance: 
  
  Analyze the job's processing logic to identify any performance bottlenecks. This may involve optimizing queries, reducing data volume, or improving system resources.
  
  
  
  Monitor System Performance: 
  
  Check system performance metrics to ensure that there are no underlying issues affecting job execution. This may include checking CPU, memory, and I/O performance.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to the specific job or data exchange process for any known issues or recommendations.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SM37: Job Monitoring
  SM36: Job Scheduling
  SM21: System Log for error analysis
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the job or data exchange process.
  Performance Tuning: Consider engaging with your SAP Basis team for performance tuning and optimization strategies.
  
  By following these steps, you should be able to resolve the MDQ_DATA_EXCHANGE045 error and ensure that your data exchange jobs run smoothly without conflicts.