How To Fix SABP_KEY_REDUNDANCY011 - Check whether both keys are necessary

SAP Error Message - Details

• Message type: E = Error

• Message class: SABP_KEY_REDUNDANCY - Superfluous Keys Messages

• Message number: 011

• Message text: Check whether both keys are necessary

What causes this issue?

The table keys &V1& and &V2& are both of the type SORTED. The non-unique
key &V1& is an initial part of the unique key &V2&. Check whether both
keys are required.
INCLUDE INCL_MIGRATION_SCENARIO
The key &V2& has more components than &V1& and is thus more selective.
In the case of all statements where the key &V1& is used, &V2& could
also be used (exception: READ/DELETE # WITH TABLE KEY#, where all key
components have to be assigned exactly).
Check whether only one of the keys is used or could be used and whether
the other key can be removed.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SABP_KEY_REDUNDANCY011 - Check whether both keys are necessary ?

  The SAP error message SABP_KEY_REDUNDANCY011 indicates that there is a redundancy in the key fields of a particular data structure or table. This typically occurs when two or more key fields are defined in a way that makes one of them unnecessary for the unique identification of records.
  Cause:
  The error is usually caused by:
  
  Redundant Key Fields: Two or more fields are defined as key fields in a database table or structure, but one of them does not contribute to the uniqueness of the records.
  Incorrect Data Model Design: The data model may have been designed in a way that does not properly reflect the relationships between entities, leading to unnecessary key fields.
  
  Solution:
  To resolve the error, you should:
  
  Review the Key Fields: Check the definition of the table or structure where the error occurs. Identify the key fields and determine if all of them are necessary for uniquely identifying records.
  Remove Redundant Keys: If you find that one or more key fields are redundant, you can remove them from the key definition. This can typically be done in the Data Dictionary (SE11) by editing the table or structure.
  Test Changes: After making changes, ensure to test the functionality to confirm that the removal of the key fields does not affect the integrity of the data or the application logic.
  Consult Documentation: If you are unsure about which key fields are necessary, consult the documentation or data model specifications for the application or module you are working with.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), or SE80 (Object Navigator) to analyze and modify the table definitions.
  Impact Analysis: Before making changes, consider performing an impact analysis to understand how the changes might affect other parts of the system.
  Backup: Always ensure that you have a backup of the current state before making structural changes to the database.
  Consult with Colleagues: If you are part of a larger team, it may be beneficial to discuss the changes with colleagues or a database administrator to ensure that the changes align with overall data governance policies.
  
  By following these steps, you should be able to resolve the SABP_KEY_REDUNDANCY011 error effectively.