How To Fix BU020 - Error opening log

SAP Error Message - Details

• Message type: E = Error

• Message class: BU - Industry-specific short text replacement

• Message number: 020

• Message text: Error opening log

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 BU020 - Error opening log ?

  The SAP error message BU020, which states "Error opening log," typically occurs when there is an issue with the logging mechanism in the SAP system. This error can arise due to various reasons, including:
  Causes:
  
  File System Issues: The directory where the log files are stored may not have the necessary permissions, or the file system may be full.
  Configuration Errors: There may be incorrect settings in the SAP system configuration related to logging.
  Database Issues: Problems with the database connection or database itself can lead to logging errors.
  Transport Directory Issues: If the error occurs during a transport operation, it may be related to issues with the transport directory.
  Temporary Files: Temporary files may not be cleaned up properly, leading to conflicts or space issues.
  
  Solutions:
  
  
  Check File System:
  
  Ensure that the file system where the logs are stored has enough space.
  Verify that the SAP user has the necessary permissions to write to the log directory.
  
  
  
  Review Configuration:
  
  Check the configuration settings for logging in the SAP system. This can be done through transaction codes like RZ10 (for profile parameters) or RZ11 (for dynamic parameters).
  Ensure that the logging paths are correctly set.
  
  
  
  Database Connection:
  
  Verify that the database is up and running and that there are no connectivity issues.
  Check for any database-related errors in the system logs.
  
  
  
  Transport Directory:
  
  If the error occurs during a transport operation, check the transport directory for issues. Ensure that the transport directory is correctly configured and accessible.
  
  
  
  Clean Up Temporary Files:
  
  If there are temporary files that are causing conflicts, consider cleaning them up. This can often be done through transaction codes like SARA (for archiving) or SM37 (for job monitoring).
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM21 (System Log), SLG1 (Application Log), and ST22 (Dump Analysis) to gather more information about the error.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed logs and error messages for further analysis.
  
  By following these steps, you should be able to diagnose and resolve the BU020 error in your SAP system.