How To Fix DT403 - Inconsistent foreign key &-& deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 403

• Message text: Inconsistent foreign key &-& deleted

What causes this issue?

During reading, a foreign key was found to be irreparably inconsistent.
The foreign key was deleted.

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?

Check whether the foreign key for the table is correctly defined. (The
foreign key was deleted, but it could have been correctly created again
for an included foreign key by inheriting.)

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT403 - Inconsistent foreign key &-& deleted ?

  The SAP error message DT403 "Inconsistent foreign key &-& deleted" typically occurs in the context of data integrity issues within the database, particularly when dealing with foreign key relationships. This error indicates that there is a foreign key constraint that is not being satisfied because the referenced record has been deleted or is otherwise inconsistent.
  Cause:
  
  Deleted Records: The primary cause of this error is that a record that is referenced by a foreign key has been deleted from the database. This can happen during data maintenance activities or due to data migration processes.
  Data Inconsistency: There may be inconsistencies in the data where the foreign key points to a non-existent or invalid record.
  Incorrect Data Entry: Manual data entry errors can lead to foreign keys pointing to records that do not exist.
  Data Migration Issues: If data has been migrated from one system to another, foreign key relationships may not have been maintained correctly.
  
  Solution:
  
  Check Foreign Key Relationships: Review the foreign key relationships in the database to identify which records are causing the inconsistency. You can use transaction codes like SE11 (Data Dictionary) to check the table definitions and relationships.
  Restore Deleted Records: If the deleted records are still needed, consider restoring them from a backup if possible.
  Update or Delete Inconsistent Records: If the foreign key references a record that no longer exists, you may need to update or delete the records that are causing the inconsistency.
  Data Validation: Implement data validation checks to prevent the entry of invalid foreign key references in the future.
  Use Transaction Codes: Use transaction codes like SE14 (Database Utility) to check and repair inconsistencies in the database.
  Consult Logs: Check application logs or system logs for more detailed information about the error and the context in which it occurred.
  
  Related Information:
  
  Foreign Key Constraints: Understand how foreign key constraints work in SAP and the importance of maintaining data integrity.
  Data Dictionary: Familiarize yourself with the SAP Data Dictionary (SE11) to better understand table structures and relationships.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  Testing: After making changes, ensure to test the system thoroughly to confirm that the issue has been resolved and that no new issues have been introduced.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further investigation.