How To Fix CNV_DEMO006 - Foreign key from &1 does not exist in &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DEMO - Demo package messages

• Message number: 006

• Message text: Foreign key from &1 does not exist in &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DEMO006 - Foreign key from &1 does not exist in &2 ?

  The SAP error message CNV_DEMO006 indicates that there is a foreign key constraint violation in the context of data migration or conversion. Specifically, it means that a foreign key reference from one table (denoted as &1) does not exist in the referenced table (denoted as &2). This typically occurs during data migration processes where data integrity is crucial.
  Cause:
  
  
  Missing Data: The most common cause is that the data being migrated or converted contains references to records that do not exist in the target table. For example, if you are trying to migrate sales orders that reference customers, but the customer records do not exist in the target system, this error will occur.
  
  
  Incorrect Mapping: There may be an issue with the mapping of fields between the source and target systems. If the foreign key fields are not correctly mapped, it can lead to references to non-existent records.
  
  
  Data Integrity Issues: The source data may have integrity issues, such as orphaned records or incorrect relationships, which can lead to foreign key violations.
  
  
  Solution:
  
  
  Check Data Consistency: Verify that all foreign key references in the source data exist in the target system. You can do this by running queries to check for missing records in the target table.
  
  
  Adjust Mapping: Review the mapping configuration to ensure that all foreign key fields are correctly mapped to their corresponding fields in the target system.
  
  
  Data Cleanup: If the source data has integrity issues, you may need to clean up the data before migration. This could involve removing or correcting records that do not have valid references.
  
  
  Use of Staging Tables: Consider using staging tables during the migration process. This allows you to validate and clean the data before it is moved to the final target tables.
  
  
  Consult Documentation: Refer to the SAP documentation or migration guides specific to the tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) for additional troubleshooting steps and best practices.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary) to check the structure of the tables involved and SE16 (Data Browser) to view the data in those tables.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance related to the CNV_DEMO006 error.
  Logs and Traces: Review logs and traces generated during the migration process for more detailed error messages that can help pinpoint the issue.
  
  By following these steps, you should be able to identify the cause of the CNV_DEMO006 error and implement a solution to resolve it.