How To Fix DA601 - Old key field & is now non-key field

SAP Error Message - Details

• Message type: E = Error

• Message class: DA - Dictionary: Compare, distribution, timer, instantiation

• Message number: 601

• Message text: Old key field & is now non-key field

What causes this issue?

The specified field was identified as a key field in the old version of
the table. Once the table has been activated, the field is converted to
a non-key field. This might render it necessary for the table to be
converted in the database.

System Response

Information message

How to fix this error?

No action required

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DA601 - Old key field & is now non-key field ?

  The SAP error message DA601 indicates that a field that was previously defined as a key field in a database table is now being treated as a non-key field. This typically occurs during changes to the data dictionary, such as when modifying the structure of a table or when adjusting the key fields of a table.
  Cause:
  
  Table Structure Changes: The most common cause of this error is a change in the table structure where a field that was previously defined as a key field has been removed from the key definition.
  Data Dictionary Adjustments: Changes made in the Data Dictionary (SE11) that affect the key fields of a table can lead to this error.
  Inconsistent Data Model: If there are inconsistencies in the data model or if the application logic expects a certain field to be a key field, this error can arise.
  
  Solution:
  
  Check Table Definition: Go to transaction SE11 and check the definition of the table in question. Ensure that the key fields are correctly defined.
  Adjust Key Fields: If the field should indeed be a key field, you can modify the table structure to include it back as a key field. This can be done by:
  
  Opening the table in SE11.
  Selecting the field and marking it as a key field.
  Activating the changes.
  
  
  Review Related Programs: If the field is intentionally changed to a non-key field, review any related programs, function modules, or reports that may be using this field as a key. You may need to adjust the logic in these programs accordingly.
  Transport Requests: If the changes were made in a development environment, ensure that the transport requests are correctly moved to the quality and production environments.
  Check for Dependencies: Look for any dependencies or references to the field in other database tables, views, or application logic that may be affected by this change.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE80 (Object Navigator).
  Documentation: Review SAP documentation regarding data dictionary changes and key field definitions.
  SAP Notes: Check for any relevant SAP Notes that may address similar issues or provide guidance on handling key field changes.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or ABAP team for further investigation and resolution.