How To Fix SABP_KEY_REDUNDANCY024 - Check whether both keys are necessary

SAP Error Message - Details

• Message type: E = Error

• Message class: SABP_KEY_REDUNDANCY - Superfluous Keys Messages

• Message number: 024

• Message text: Check whether both keys are necessary

What causes this issue?

The unique table keys &V1& and &V2& have different types (SORTED and
HASHED). The components of &V2& are a subset of &V1&. Check whether both
keys are required.
INCLUDE INCL_MIGRATION_SCENARIO
If &V1& is a HASHED key, there is a genuine subset of its components
that is already unique. If &V1& is a SORTED key, there is a genuine
initial part that is already unique.
Remove the superfluous components from the key &V1&. The key is then
redundant to the key &V2&. Check whether only one of the two keys is
used or whether only one key is needed and therefore the other 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_REDUNDANCY024 - Check whether both keys are necessary ?

  The SAP error message SABP_KEY_REDUNDANCY024 indicates that there is a redundancy in the key fields defined for a particular data structure or table. This typically occurs when two or more key fields are defined in such a way that they do not provide unique identification for the records, leading to potential conflicts or ambiguities in data retrieval.
  Cause:
  The primary cause of this error is the definition of multiple key fields that may not be necessary for uniquely identifying records. This can happen in various scenarios, such as:
  
  Duplicate Key Fields: Two or more fields are defined as keys, but they contain overlapping or identical data.
  Unnecessary Key Fields: Some fields may not be needed as part of the key, leading to redundancy.
  Incorrect Data Model Design: The data model may not have been designed optimally, leading to unnecessary complexity.
  
  Solution:
  To resolve the SABP_KEY_REDUNDANCY024 error, you can follow these steps:
  
  
  Review Key Definitions: Check the key fields defined for the relevant data structure or table. Identify if there are any fields that are redundant or not necessary for unique identification.
  
  
  Remove Redundant Keys: If you find that certain key fields are not needed, you can remove them from the key definition. Ensure that the remaining key fields are sufficient to uniquely identify each record.
  
  
  Consult Documentation: Refer to the SAP documentation or data model guidelines to understand the best practices for defining keys in your specific context.
  
  
  Test Changes: After making changes to the key definitions, test the data structure or table to ensure that it functions correctly and that the error no longer occurs.
  
  
  Seek Expert Advice: If you are unsure about which keys to keep or remove, consider consulting with a database administrator or an SAP expert who can provide guidance based on the specific use case.
  
  
  Related Information:
  
  Data Model Design: Understanding the principles of data modeling can help prevent such issues in the future. Familiarize yourself with normalization and the importance of unique keys.
  SAP Notes and Documentation: Check SAP Notes for any specific guidance or patches related to this error message. SAP's support portal may have additional resources.
  Testing and Validation: After making changes, ensure thorough testing to validate that the data integrity is maintained and that the application behaves as expected.
  
  By addressing the redundancy in key definitions, you can resolve the error and improve the overall efficiency and reliability of your SAP data structures.