How To Fix MZ091 - System problems blocking exception

SAP Error Message - Details

• Message type: E = Error

• Message class: MZ - Message for the EWS in LIS

• Message number: 091

• Message text: System problems blocking exception

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MZ091 - System problems blocking exception ?

  The SAP error message MZ091, which states "System problems blocking exception," typically indicates that there is a system-level issue that is preventing the processing of a specific exception or transaction. This error can arise in various contexts, such as during the execution of a transaction, while processing data, or when trying to access certain functionalities within the SAP system.
  Causes:
  
  System Configuration Issues: Incorrect configuration settings in the SAP system can lead to this error.
  Database Locking: If a database table is locked due to another transaction, it can block the processing of exceptions.
  Performance Issues: High system load or performance bottlenecks can lead to timeouts or failures in processing.
  Missing Authorizations: Lack of necessary authorizations for the user can also trigger this error.
  Transport Issues: Problems with transport requests or inconsistencies in the system landscape can lead to this error.
  Software Bugs: There may be bugs in the SAP software that cause this error under specific conditions.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) for any related error messages that can provide more context about the issue.
  Transaction Monitoring: Use transaction SM12 to check for any locked entries in the database that may be causing the blockage. If necessary, unlock the entries.
  Performance Monitoring: Use transaction ST22 to check for dumps that may indicate performance issues or other underlying problems.
  User Authorizations: Verify that the user has the necessary authorizations to perform the action that triggered the error.
  System Configuration: Review the configuration settings related to the specific module or transaction to ensure they are set up correctly.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches.
  Restart Services: In some cases, restarting the affected services or the entire SAP system may resolve transient issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, especially if it appears to be a bug or a more complex system issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SM12 (Lock Entries), ST22 (Dump Analysis), and SU53 (Authorization Check).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation for the specific module or functionality where the error occurred to understand any prerequisites or known issues.
  
  By following these steps, you should be able to diagnose and potentially resolve the MZ091 error in your SAP system.