How To Fix BL252 - Message number 999999 reached. Log is full

SAP Error Message - Details

• Message type: E = Error

• Message class: BL - Application Log

• Message number: 252

• Message text: Message number 999999 reached. Log is full

Application log: Display logs:
For technical reasons, only a limited number of messages can be part of
an application log.
An application log (an entry in the table BALHDR) can have a maximum of
999999 messages (up to 999999 entries in table BALDAT). Both these
tables are associated with each other using the field LOG_HANDLE.

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

Solution:
Reduce the number of messages in each application log or check whether
it is necessary to generate this many messages.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BL252 - Message number 999999 reached. Log is full ?

  The SAP error message BL252 indicates that a specific log file has reached its maximum size, which prevents further logging of messages. This can occur in various contexts, such as during batch processing, job execution, or when handling logs for specific transactions.
  Cause:
  
  Log File Size Limit: Each log file in SAP has a predefined size limit. When this limit is reached, the system cannot log any new messages, leading to the BL252 error.
  High Volume of Logs: If a process generates a large number of log entries in a short period, it can quickly fill up the log file.
  Retention Settings: The retention settings for logs may not be configured to delete or archive old logs, leading to accumulation.
  
  Solution:
  
  
  Clear or Archive Logs:
  
  Transaction SLG1: Use this transaction to view and delete logs. You can filter logs based on date, user, or object.
  Transaction SARA: If the logs are related to archiving, you can use this transaction to archive old logs and free up space.
  Transaction SM37: Check for any long-running jobs that may be generating excessive logs and consider terminating them if they are no longer needed.
  
  
  
  Increase Log Size:
  
  If applicable, you can increase the maximum size of the log files. This may require adjustments in the system configuration or parameters.
  
  
  
  Adjust Retention Settings:
  
  Review and adjust the retention settings for logs to ensure that old logs are deleted or archived regularly.
  
  
  
  Monitor Log Usage:
  
  Implement monitoring to keep track of log file usage and set up alerts for when they approach their limits.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to log management and the specific error message for any updates or patches that may address the issue.
  System Administration: Regular maintenance of logs is part of system administration best practices. Ensure that your team has a process in place for log management.
  Performance Impact: Be aware that excessive logging can impact system performance. Review the logging level and adjust it if necessary.
  
  By following these steps, you should be able to resolve the BL252 error and prevent it from occurring in the future.