How To Fix DA604 - New or non-key field & is now key field

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 604

• Message text: New or non-key field & is now key field

What causes this issue?

A non-key field was included in the key by selecting the key flag.
After activating the table, this field is now the key field of the
table.

System Response

Information message

How to fix this error?

Changing the key of a table makes it necessary to convert the table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DA604 - New or non-key field & is now key field ?

  The SAP error message DA604 indicates that a new or non-key field is being treated as a key field in a data dictionary object, such as a table or a view. This typically occurs when there is an inconsistency in the definition of the data structure, particularly when a field that was previously defined as a non-key field is now being defined as a key field.
  Cause:
  
  Field Definition Change: The field in question has been modified in the data dictionary (e.g., in a table or structure) to be a key field, but it is not properly defined or does not meet the requirements for being a key field.
  Inconsistent Data Model: The data model may have inconsistencies, such as changes in the underlying database or data structure that have not been properly reflected in the SAP data dictionary.
  Transport Issues: If the changes were transported from one system to another (e.g., from development to production), there may have been issues during the transport that caused inconsistencies.
  
  Solution:
  
  Check Field Definition: Review the field definition in the data dictionary (transaction SE11) to ensure that the field is correctly defined as a key field. If it should not be a key field, revert the changes.
  Adjust Data Model: If the field is intended to be a key field, ensure that it meets the requirements for key fields (e.g., uniqueness, not null).
  Rebuild or Adjust Indexes: If the error is related to indexes, you may need to adjust or rebuild the indexes associated with the table or view.
  Transport Consistency: If the issue arose after a transport, check the transport logs for errors and ensure that all related objects were transported correctly.
  Activate Changes: After making any changes, ensure that you activate the data dictionary objects to apply the changes.
  
  Related Information:
  
  Transaction Codes: Use transaction SE11 (Data Dictionary) to view and modify table definitions, and SE14 (Database Utility) to manage database objects.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for DA604 in the SAP Support Portal.
  Documentation: Review SAP documentation on data dictionary concepts, particularly regarding key fields and their requirements.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis or ABAP team for further investigation.