How To Fix SABP_KEY_REDUNDANCY006 - &1 is non-unique, &2 is unique

SAP Error Message - Details

• Message type: E = Error

• Message class: SABP_KEY_REDUNDANCY - Superfluous Keys Messages

• Message number: 006

• Message text: &1 is non-unique, &2 is unique

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 therefore 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_REDUNDANCY006 - &1 is non-unique, &2 is unique ?

  The SAP error message SABP_KEY_REDUNDANCY006 indicates that there is a redundancy issue with the key fields in a particular context, typically related to master data or transactional data. The message states that the first key field (&1) is non-unique, while the second key field (&2) is unique. This usually occurs when the system expects a unique combination of key fields but finds duplicates.
  Cause:
  
  Data Duplication: The primary cause of this error is that there are duplicate entries in the database for the specified key fields. This can happen due to incorrect data entry, data migration issues, or inconsistencies in data updates.
  Configuration Issues: Sometimes, the configuration settings in the SAP system may not align with the expected data structure, leading to conflicts in key uniqueness.
  Custom Development: If there are custom programs or enhancements that manipulate data, they may inadvertently create duplicates.
  
  Solution:
  
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to query the relevant database table and identify the duplicate entries for the specified key fields. You can use SQL queries to find duplicates based on the key fields mentioned in the error message.
  Example SQL query:
  SELECT key_field1, COUNT(*)
  FROM your_table
  GROUP BY key_field1
  HAVING COUNT(*) > 1;
  
  
  Data Cleanup: Once duplicates are identified, you will need to decide how to handle them. This could involve:
  
  Deleting the duplicate entries if they are not needed.
  Merging records if they contain complementary information.
  Correcting the data entry process to prevent future duplicates.
  
  
  
  Check Configuration: Review the configuration settings related to the data model in question. Ensure that the uniqueness constraints are correctly defined and that they align with the business requirements.
  
  
  Testing: After making changes, test the relevant transactions or processes to ensure that the error no longer occurs and that the data integrity is maintained.
  
  
  Consult Documentation: If the issue persists, consult SAP documentation or reach out to SAP support for further assistance, especially if it involves complex configurations or custom developments.
  
  
  Related Information:
  
  Transaction Codes: SE16 (Data Browser), SE11 (Data Dictionary), SE80 (Object Navigator).
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Data Management Best Practices: Implement data governance practices to minimize the risk of data duplication in the future.
  
  By following these steps, you should be able to resolve the SABP_KEY_REDUNDANCY006 error and ensure the integrity of your SAP data.