How To Fix CNV_PE_CHECK_V2028 - Table &1: Foreign key relationship is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_CHECK_V2 - Check Messages (Version 2020)

• Message number: 028

• Message text: Table &1: Foreign key relationship is inconsistent

What causes this issue?

Foreign key relationship of table &V1& is inconsistent. The check table
does not exist anymore.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose a valid check table for table &V1&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_CHECK_V2028 - Table &1: Foreign key relationship is inconsistent ?

  The SAP error message CNV_PE_CHECK_V2028 indicates that there is an inconsistency in the foreign key relationship for a specific table in the context of a data migration or conversion process. This error typically arises during the execution of a data migration project, especially when using tools like SAP's Data Migration Workbench or during system conversions.
  Cause:
  
  Foreign Key Constraint Violation: The error suggests that there are records in the child table that do not have corresponding entries in the parent table, violating the foreign key constraint.
  Data Integrity Issues: The data being migrated may have integrity issues, such as missing references or orphaned records.
  Incorrect Mapping: During the data migration process, the mapping of fields between source and target tables may not have been set up correctly, leading to inconsistencies.
  Data Format Issues: The data format or type in the source system may not match the expected format in the target system, causing issues with foreign key relationships.
  
  Solution:
  
  Check Data Consistency: Review the data in both the parent and child tables to ensure that all foreign key references are valid. You can run SQL queries to identify orphaned records in the child table.
  Correct Mapping: Verify the mapping configuration in the migration tool to ensure that all foreign key relationships are correctly defined.
  Data Cleansing: If there are inconsistencies, you may need to clean the data in the source system before migration. This could involve removing or correcting orphaned records.
  Adjust Foreign Key Constraints: If necessary, you can temporarily disable foreign key constraints during the migration process and re-enable them afterward, but this should be done with caution and thorough testing.
  Use SAP Tools: Utilize SAP's built-in tools and reports to analyze and fix data inconsistencies. Tools like the Data Migration Workbench can help identify issues.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using, as there may be specific guidelines or known issues.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary) to check table definitions and relationships.
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide additional guidance.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, including pre-migration checks, data validation, and post-migration audits.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who specializes in data migration.