How To Fix CNV_MBT128 - INSERT: activity &1 in phase &2 with parent &3 ...

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 128

• Message text: INSERT: activity &1 in phase &2 with parent &3 ...

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT128 - INSERT: activity &1 in phase &2 with parent &3 ... ?

  The SAP error message CNV_MBT128 typically occurs during the execution of a migration or data transfer process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with inserting a record into a specific activity during a particular phase of the migration process.
  Cause:
  The error message CNV_MBT128 can be caused by several factors, including:
  
  Data Integrity Issues: The data being migrated may not meet the required integrity constraints, such as foreign key relationships or unique constraints.
  Missing Parent Records: The parent record (indicated by &3 in the error message) may not exist in the target system, which is necessary for the child record (indicated by &1) to be inserted.
  Configuration Issues: There may be configuration settings in the migration tool that are not correctly set up, leading to issues during the data insertion phase.
  Data Format Issues: The format of the data being migrated may not match the expected format in the target system.
  
  Solution:
  To resolve the CNV_MBT128 error, you can take the following steps:
  
  Check Data Integrity: Review the data being migrated to ensure that it adheres to the integrity constraints of the target system. Look for any missing or invalid data that could cause the insertion to fail.
  Verify Parent Records: Ensure that all necessary parent records exist in the target system before attempting to insert child records. If a parent record is missing, you may need to migrate it first.
  Review Migration Configuration: Check the configuration settings of the migration tool to ensure that they are correctly set up for the data being migrated. This includes mapping fields correctly and ensuring that all necessary parameters are defined.
  Examine Logs: Look at the detailed logs generated during the migration process. These logs can provide more context about the error and help identify the specific issue.
  Data Format Validation: Validate the format of the data being migrated to ensure it matches the expected format in the target system. This may involve checking data types, lengths, and other constraints.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for best practices and guidelines.
  Community Forums: Consider searching or posting in SAP community forums or support channels for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CNV_MBT128 error during your migration process.