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

DA601 - Overview

• 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.

DA601 - Details

• 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