How To Fix OL663 - Local key fields deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 663

• Message text: Local key fields deleted

What causes this issue?

You are trying to convert an object type into a subtype of another
object type. However, no key changes are permitted in subtypes and as a
result, the local key fields of the new subtype are deleted and the
subtype inherits the key field definitions of the supertype.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL663 - Local key fields deleted ?

  The SAP error message OL663 ("Local key fields deleted") typically occurs in the context of data processing or configuration in SAP systems, particularly when dealing with data structures or database tables. This error indicates that key fields that are defined locally in a data structure or table have been deleted, which can lead to inconsistencies or issues in data processing.
  Cause:
  
  Field Deletion: The most common cause of this error is the deletion of key fields from a table or structure that is being referenced in a program or transaction. This can happen during modifications to the data model or when changes are made to the underlying database schema.
  Inconsistent Data Model: If the data model has been altered (e.g., through a transport request) and the changes have not been properly synchronized across all relevant components, it can lead to this error.
  Custom Development: If there are custom developments (like ABAP programs or enhancements) that rely on specific key fields, and those fields are deleted or modified, it can trigger this error.
  
  Solution:
  
  Check Data Dictionary: Review the data dictionary (SE11) for the relevant table or structure to ensure that the key fields are correctly defined and have not been deleted.
  Transport Requests: If the issue arose after a transport, check the transport logs to see if any changes were made to the key fields. You may need to revert or adjust the transport.
  Adjust Custom Code: If there are custom programs or enhancements that reference the deleted key fields, you will need to update the code to reflect the current structure of the table or data model.
  Recreate Key Fields: If the key fields were deleted unintentionally, you may need to recreate them in the data dictionary.
  Consult Documentation: Review any documentation related to recent changes in the system that might have affected the data model.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) to investigate the issue further.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Debugging: If you have access to debugging tools, you can set breakpoints in the relevant ABAP code to trace where the error is being triggered and gather more context about the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further assistance.