How To Fix CNV_PE808 - Parameter name: &1 ID: &2 foreign key is created

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 808

• Message text: Parameter name: &1 ID: &2 foreign key is created

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE808 - Parameter name: &1 ID: &2 foreign key is created ?

  The SAP error message CNV_PE808 typically indicates an issue related to foreign key constraints in the context of data migration or conversion processes, particularly when using SAP's data migration tools. This error suggests that a foreign key relationship is being violated, meaning that the system is trying to create or reference a record that does not exist in the related table.
  Cause:
  
  
  Missing Data: The primary cause of this error is often that the data being migrated or converted references a key that does not exist in the target table. For example, if you are trying to create a record in a child table that references a parent table, and the corresponding parent record does not exist, this error will occur.
  
  
  Incorrect Mapping: There may be an issue with how the data is mapped during the migration process. If the mapping does not correctly align with the existing data structure, it can lead to foreign key violations.
  
  
  Data Integrity Issues: If the source data has integrity issues, such as orphaned records or incorrect relationships, this can also lead to foreign key constraint violations.
  
  
  Solution:
  
  
  Check Data Integrity: Ensure that all referenced records exist in the parent tables before attempting to create records in the child tables. You may need to run queries to identify missing parent records.
  
  
  Review Mapping Configuration: Verify the mapping configuration in your data migration tool. Ensure that the foreign key relationships are correctly defined and that the data being migrated aligns with the expected structure.
  
  
  Preload Required Data: If certain parent records are required for the migration, ensure that they are loaded into the target system before the child records are processed.
  
  
  Adjust Migration Logic: If necessary, adjust the logic of your migration process to handle dependencies correctly. This may involve changing the order of data loading or implementing checks to ensure that all required records are present.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, LSMW, etc.) for additional guidance on handling foreign key constraints.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary) to check the table definitions and foreign key relationships.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to the CNV_PE808 error or provide updates and patches.
  Data Migration Tools: Familiarize yourself with the specific data migration tool you are using, as each may have its own set of best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the root cause of the CNV_PE808 error and implement a solution to resolve it.