How To Fix CNV_MBT078 - Subproject &1 not existent in table cnvmbtsubproject.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 078

• Message text: Subproject &1 not existent in table cnvmbtsubproject.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT078 - Subproject &1 not existent in table cnvmbtsubproject. ?

  The SAP error message CNV_MBT078 indicates that a subproject specified in your operation does not exist in the table cnvmbtsubproject. This error typically arises during data migration or conversion processes, particularly when using SAP's Migration Cockpit or similar tools.
  Cause:
  
  Non-existent Subproject: The subproject you are trying to reference has not been created or does not exist in the cnvmbtsubproject table.
  Incorrect Configuration: There may be a misconfiguration in the migration project settings, leading to the reference of a subproject that is not defined.
  Data Consistency Issues: If the data in the migration project has been altered or not properly loaded, it may lead to inconsistencies that trigger this error.
  
  Solution:
  
  
  Check Subproject Existence:
  
  Verify that the subproject you are trying to use actually exists in the cnvmbtsubproject table. You can do this by executing a SQL query or using transaction codes like SE11 or SE16 to view the contents of the table.
  
  
  
  Create the Subproject:
  
  If the subproject does not exist, you will need to create it. This can typically be done through the relevant transaction in the SAP system where you manage migration projects.
  
  
  
  Review Configuration:
  
  Check the configuration settings of your migration project to ensure that all subprojects are correctly defined and that there are no typos or misconfigurations.
  
  
  
  Data Consistency Check:
  
  Ensure that all necessary data has been loaded correctly into the migration project. If there are any missing or inconsistent entries, rectify them.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, providing them with the error details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), and any specific transaction related to your migration tool.
  SAP Notes: Search for SAP Notes related to the error message CNV_MBT078 for any patches or updates that may address the issue.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, ensure that you are following the correct steps for setting up and executing your migration project.
  
  By following these steps, you should be able to resolve the CNV_MBT078 error and proceed with your migration tasks.