How To Fix /STTPEC/MC_MD171 - Data processing has been started in &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /STTPEC/MC_MD -

• Message number: 171

• Message text: Data processing has been started in &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /STTPEC/MC_MD171 - Data processing has been started in &1 ?

  The SAP error message /STTPEC/MC_MD171 Data processing has been started in &1 typically indicates that a data processing job or task has already been initiated in the specified system or client (denoted by &1). This message is often encountered in the context of data processing jobs, such as those related to inventory management, material master data, or other batch processing tasks.
  Cause:
  
  Concurrent Processing: The error usually arises when a user attempts to start a data processing job that is already running. This can happen if multiple users or processes try to execute the same job simultaneously.
  Job Overlap: If a scheduled job overlaps with a manual job that is being executed, this error may occur.
  System Lock: The system may have a lock on the data being processed, preventing another instance of the job from starting.
  
  Solution:
  
  Check Running Jobs: Use transaction codes like SM37 (Job Monitoring) to check if the job is currently running. If it is, you may need to wait for it to complete.
  Job Management: If you find that the job is stuck or taking too long, you may need to terminate it (if appropriate) and then restart the job.
  Avoid Concurrent Execution: Ensure that users are aware of the jobs being run and avoid starting the same job concurrently.
  Review Job Scheduling: If this is a recurring issue, consider reviewing the job scheduling to prevent overlaps. Adjust the timing of jobs to ensure they do not conflict.
  System Logs: Check system logs for any additional error messages or warnings that might provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM37 for job monitoring, SM21 for system logs, and ST22 for dump analysis.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  Documentation: Review SAP documentation related to the specific module or process you are working with to understand any constraints or requirements for data processing jobs.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.