How To Fix MCEX250 - The size of the extraction queue &1 has not been reduced

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 250

• Message text: The size of the extraction queue &1 has not been reduced

What causes this issue?

The number of entries in the extraction queue has not been reduced by
the collective run.

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

This may be related to the problme described in SAP Note 728687, but may
also have been caused by postings during the runtime of the collective
run.

System Response

How to fix this error?

Check the extraction queue and, if necessary, repeair it as described in
SAP Note 728687.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX250 - The size of the extraction queue &1 has not been reduced ?

  The SAP error message MCEX250 indicates that the size of the extraction queue for a specific data source has not been reduced as expected. This can occur in the context of data extraction processes, particularly when using SAP BW (Business Warehouse) or SAP ECC (Enterprise Central Component) systems.
  Cause:
  The error can be caused by several factors, including:
  
  
  Data Load Issues: If there are issues during the data load process, such as failed data transfers or incomplete data processing, the extraction queue may not be cleared as expected.
  
  
  Data Source Configuration: Incorrect configuration of the data source or the extraction process can lead to problems in managing the extraction queue.
  
  
  Performance Issues: If the system is experiencing performance issues, it may not be able to process the data in the extraction queue efficiently.
  
  
  Locks or Conflicts: Locks on the data or conflicts with other processes can prevent the extraction queue from being processed.
  
  
  Batch Job Failures: If the batch jobs responsible for processing the extraction queue fail, the queue will not be reduced.
  
  
  Solution:
  To resolve the MCEX250 error, you can take the following steps:
  
  
  Check the Extraction Process: Review the extraction process to ensure that it is configured correctly and that there are no errors in the data source.
  
  
  Monitor the Queue: Use transaction codes like RSA7 (for delta queue monitoring) or SMQ1/SMQ2 (for queue monitoring) to check the status of the extraction queue and identify any stuck or failed entries.
  
  
  Analyze Logs: Check the logs for any error messages or warnings that may provide insight into why the extraction queue is not being processed.
  
  
  Reprocess Failed Requests: If there are failed requests in the extraction queue, attempt to reprocess them. You can use transaction LBWQ to manage the queue.
  
  
  Check for Locks: Use transaction SM12 to check for any locks that may be preventing the processing of the extraction queue.
  
  
  Increase System Resources: If performance issues are identified, consider increasing system resources or optimizing the data load process.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA7, SMQ1, SMQ2, and LBWQ for monitoring and managing the extraction queue.
  SAP BW Documentation: Review SAP BW documentation for best practices on data extraction and queue management.
  Performance Tuning: Consider performance tuning techniques for your SAP system to improve data processing efficiency.
  
  By following these steps, you should be able to identify the root cause of the MCEX250 error and implement a solution to resolve it.