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