How To Fix CNV_MBT147 - Insert action requires either a parent ID or a predecessor

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 147

• Message text: Insert action requires either a parent ID or a predecessor

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT147 - Insert action requires either a parent ID or a predecessor ?

  The SAP error message CNV_MBT147 ("Insert action requires either a parent ID or a predecessor") typically occurs in the context of data migration or data transformation processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is expecting a hierarchical relationship in the data being processed, but it cannot find the necessary identifiers to establish that relationship.
  Cause:
  
  Missing Parent ID: The data being inserted requires a reference to a parent object (e.g., a higher-level entity in a hierarchy), but the parent ID is not provided or is incorrect.
  Missing Predecessor: In some cases, the system may require a predecessor ID to establish a sequence or relationship between records, and this information is missing.
  Data Structure Issues: The data structure being used for the migration may not align with the expected structure in the target system, leading to missing relationships.
  Incorrect Mapping: The mapping configuration in the migration tool may not be set up correctly, causing the system to not recognize the relationships between records.
  
  Solution:
  
  Check Data Source: Review the source data to ensure that all necessary parent IDs or predecessor IDs are included. Make sure that the data is complete and correctly formatted.
  Validate Mapping Configuration: Go through the mapping settings in the migration tool to ensure that the relationships between records are correctly defined. Ensure that the fields for parent IDs and predecessor IDs are correctly mapped.
  Data Hierarchy: Ensure that the data hierarchy is correctly established. If you are inserting child records, make sure that the corresponding parent records are already present in the target system.
  Preload Parent Records: If the parent records are not yet loaded into the target system, consider preloading them before attempting to insert child records.
  Error Logs: Check the error logs or detailed messages provided by the migration tool for more specific information about which records are causing the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or documentation 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 tool you are using for data migration, as it may provide insights into the expected data structure and relationships.
  Community Forums: Consider searching or posting in SAP community forums or support channels, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.