How To Fix MCEX171 - Multi-queue settings were changed for application &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 171

• Message text: Multi-queue settings were changed for application &1

What causes this issue?

For application &V1&, the parameters for using the multi-queue
technique were activated, changed, or deactivated.

How to fix this error?

<ZH>Important</>:
Before the transport of customizing requests for the update mode into
other systems, you <ZH>must</> check to see that no more entries exist
in these systems in the extraction queue for application &V1&.
Otherwise, you risk the danger of having deltas either arrive in the
incorrect sequence in the BW system, or they can no longer be
retrieved.
It is possible to check the target system in the logistics queue
overview (transaction LBWQ).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX171 - Multi-queue settings were changed for application &1 ?

  The SAP error message MCEX171 indicates that the multi-queue settings for a specific application (denoted by &1) have been changed. This message typically arises in the context of SAP's data processing and reporting, particularly in the areas of logistics and inventory management.
  Cause:
  The error can occur due to several reasons:
  
  Configuration Changes: Changes made to the multi-queue settings in the SAP system, which may have been done intentionally or accidentally.
  Transport Requests: If changes were transported from a development environment to a production environment, it could lead to inconsistencies in the multi-queue settings.
  System Upgrades or Patches: Upgrading the SAP system or applying patches may alter the multi-queue settings, leading to this error.
  User Actions: Users with the necessary authorizations may have modified the settings, causing the error to trigger.
  
  Solution:
  To resolve the MCEX171 error, consider the following steps:
  
  
  Review Configuration: Check the multi-queue settings for the application specified in the error message. Ensure that they are configured correctly according to your business requirements.
  
  
  Check Transport Requests: If the error occurred after a transport, review the transport logs to identify any changes made to the multi-queue settings. If necessary, revert the changes or adjust the settings accordingly.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific application to understand the implications of the multi-queue settings and how they should be configured.
  
  
  System Logs: Check system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the changes made.
  
  
  Revert Changes: If the changes were not intended, revert to the previous settings if possible. This may involve restoring from a backup or manually adjusting the settings.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide insights based on the specific application and system configuration.
  
  
  Related Information:
  
  Multi-Queue Processing: Understand how multi-queue processing works in SAP and its impact on data processing and reporting.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., MCEX, MC.9) that may help in monitoring and managing multi-queue settings.
  SAP Notes: Search for SAP Notes related to MCEX171 for any known issues or patches that may address the error.
  
  By following these steps, you should be able to diagnose and resolve the MCEX171 error effectively.