How To Fix CNVMBTCHECK069 - &1| Field &2 used as a child in the foreign key does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBTCHECK - Messages for PCL Checks

• Message number: 069

• Message text: &1| Field &2 used as a child in the foreign key does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBTCHECK069 - &1| Field &2 used as a child in the foreign key does not exist ?

  The SAP error message CNVMBTCHECK069 indicates that there is an issue with a foreign key relationship in the database. Specifically, the error message states that a field used as a child in the foreign key does not exist. This typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  
  Missing Field: The field specified in the error message does not exist in the target table where the foreign key relationship is being established.
  Incorrect Mapping: During the data migration process, the mapping of fields from the source to the target may have been incorrectly defined, leading to references to non-existent fields.
  Changes in Data Model: If there have been changes in the data model (e.g., during an upgrade or migration to S/4HANA), certain fields may have been removed or renamed, causing the foreign key constraint to fail.
  Configuration Issues: There may be configuration issues in the data migration settings that lead to incorrect assumptions about the database schema.
  
  Solution:
  
  Check Field Existence: Verify that the field mentioned in the error message exists in the target table. You can do this by checking the data dictionary (SE11) or using transaction codes like SE16/SE16N to view the table structure.
  Review Mapping: Go through the mapping configuration in the migration tool to ensure that all fields are correctly mapped from the source to the target. Make sure that the foreign key relationships are correctly defined.
  Update Data Model: If the data model has changed, update your migration strategy to reflect the current structure. This may involve modifying the migration scripts or configurations to accommodate the new schema.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using. There may be specific guidelines or known issues that can help resolve the error.
  Testing: After making changes, perform a test migration to ensure that the issue is resolved and that the foreign key relationships are correctly established.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into common errors and their resolutions.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.