How To Fix OZ019 - Internal error reading system data

SAP Error Message - Details

• Message type: E = Error

• Message class: OZ - Customizing Basis tools

• Message number: 019

• Message text: Internal error reading system data

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?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 OZ019 - Internal error reading system data ?

  The SAP error message OZ019, which states "Internal error reading system data," typically indicates that there is an issue with the system's ability to access or read certain internal data structures. This can be caused by a variety of factors, including:
  Causes:
  
  Database Issues: Corruption or inconsistencies in the database can lead to this error. This might happen due to hardware failures, improper shutdowns, or other database-related issues.
  System Configuration: Incorrect configuration settings in the SAP system can lead to problems when the system tries to read internal data.
  Transport Issues: If there were recent transports that did not complete successfully, they might leave the system in an inconsistent state.
  Memory Issues: Insufficient memory or other resource constraints can lead to internal errors when the system tries to process data.
  Software Bugs: There may be bugs in the SAP software that can cause this error under certain conditions.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) for any additional error messages or warnings that could provide more context about the issue.
  Database Consistency Check: Run database consistency checks to identify and resolve any corruption or inconsistencies. This may involve using tools like DBACOCKPIT or specific database utilities.
  Review Configuration: Check the configuration settings in the SAP system to ensure they are correct. This includes checking profiles and parameters.
  Transport Management: If the error occurred after a transport, check the transport logs for errors and consider rolling back the transport if necessary.
  Memory and Resource Check: Monitor system resources to ensure that there is sufficient memory and CPU available. If necessary, increase the resources allocated to the SAP system.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Restart the System: In some cases, a simple restart of the SAP system can resolve transient issues.
  
  Related Information:
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide more in-depth analysis and troubleshooting.
  Documentation: Review SAP documentation related to system errors and troubleshooting for additional guidance.
  Community Forums: Engage with the SAP community forums or user groups, as other users may have encountered similar issues and can offer insights or solutions.
  
  Always ensure that you have proper backups and a recovery plan in place before making significant changes to the system or database.