How To Fix CNV_MBT_ULV003 - Too many messages with callback logged (limit &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_ULV - Messages for Unified Log Viewer

• Message number: 003

• Message text: Too many messages with callback logged (limit &1)

What causes this issue?

Too many messages containing callback have been logged. The limit of
&V1& messages has been reached.

System Response

No further callbacks will be written to the messages, although messages
themselves will be written (as long as other limits are not exceeded).

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_ULV003 - Too many messages with callback logged (limit &1) ?

  The SAP error message CNV_MBT_ULV003 indicates that there are too many messages logged with a callback in the system, exceeding a predefined limit. This error typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other migration tools.
  Cause:
  
  Excessive Logging: The system has a limit on the number of messages that can be logged for callbacks. When this limit is exceeded, the error is triggered.
  High Volume of Data: If you are processing a large volume of data, it can lead to a situation where the number of messages generated surpasses the configured limit.
  Configuration Settings: The default settings for logging might be too low for the specific migration or conversion task you are performing.
  
  Solution:
  
  Increase the Limit: You can increase the limit for the number of messages that can be logged. This can typically be done in the configuration settings of the migration tool you are using. Look for parameters related to logging or message limits.
  Optimize Data Processing: If possible, try to optimize the data processing to reduce the number of messages generated. This could involve batching data or processing smaller chunks at a time.
  Check for Errors: Review the logs to identify if there are any underlying issues causing excessive message generation. Addressing these issues may help reduce the number of messages logged.
  Consult Documentation: Refer to the official SAP documentation for the specific migration tool you are using to find recommended settings and best practices.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes related to data migration, such as LT01, LT02, or LT03, depending on your specific scenario.
  SAP Notes: Look for relevant SAP Notes that might address this specific error or provide additional guidance on handling logging limits.
  Performance Tuning: Consider performance tuning for your migration process, which may involve adjusting parameters in the migration tool or optimizing the database.
  
  By addressing the logging limit and optimizing your data processing, you should be able to resolve the CNV_MBT_ULV003 error and continue with your migration or conversion tasks.