How To Fix DT227 - Check table & (Key was extended)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 227

• Message text: Check table & (Key was extended)

What causes this issue?

New fields have been added to the key of the table. As this table
occurs as a check table in foreign key relationships, the affected
foreign keys are adjusted automatically to form generic foreign keys.
The new fields are excluded from the foreign key check.

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?

Mantain the foreign keys if you want to include the new fields in the
foreign key check.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT227 - Check table & (Key was extended) ?

  The SAP error message DT227 ("Check table & (Key was extended)") typically occurs when there is an inconsistency between the key fields of a table and the data that is being processed. This error is often related to changes made in the database schema, such as extending the key fields of a table, which can lead to issues if the application logic or data integrity checks are not updated accordingly.
  Cause:
  
  Key Extension: The primary cause of this error is that the key of a database table has been extended (i.e., additional fields have been added to the key), but the related application logic or data processing does not account for these changes.
  Data Inconsistency: There may be existing data that does not conform to the new key structure, leading to validation errors.
  Transport Issues: If the changes were transported from a development environment to a production environment, there may be inconsistencies if the transport was not executed properly.
  
  Solution:
  
  Check Table Definition: Verify the definition of the table in the Data Dictionary (SE11) to ensure that the key fields are correctly defined and that any changes have been properly implemented.
  Update Application Logic: Review any custom code or application logic that interacts with the table to ensure it is compatible with the new key structure. This may involve updating SELECT statements, INSERT statements, or any other database operations.
  Data Consistency Check: Run consistency checks on the data to identify any records that do not conform to the new key structure. You may need to clean up or adjust these records.
  Transport Management: If the issue arose after a transport, ensure that all related objects (including any dependent tables or structures) were transported correctly. You may need to re-transport or adjust the transport request.
  Consult Documentation: Check SAP Notes or documentation related to the specific table or module you are working with for any known issues or additional guidance.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SE37 (Function Module) to investigate and modify the table and related objects.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Debugging: If necessary, use the debugger to trace the execution of the program that is generating the error to identify the exact point of failure.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis or ABAP team for further assistance.