How To Fix SABP_KEY_REDUNDANCY016 - Check whether both keys are necessary

SAP Error Message - Details

• Message type: E = Error

• Message class: SABP_KEY_REDUNDANCY - Superfluous Keys Messages

• Message number: 016

• Message text: Check whether both keys are necessary

What causes this issue?

The table keys &V1& and &V2& have the same components.
If both table keys are of the type SORTED, then their sequence also
matches.
Check whether one of the two keys can be removed.
INCLUDE INCL_MIGRATION_SCENARIO
Check whether these keys were created as a result of a migration
scenario and whether one of the keys 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_REDUNDANCY016 - Check whether both keys are necessary ?

  The SAP error message SABP_KEY_REDUNDANCY016 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:
  
  Redundant Key Fields: The error arises when the same or overlapping fields are defined as key fields in a data structure or table. This can happen during the design phase of a database or when modifying existing structures.
  Unnecessary Keys: Sometimes, additional key fields are added without a clear necessity, which can lead to redundancy.
  Data Model Changes: Changes in the data model or business requirements may render certain key fields unnecessary.
  
  Solution:
  
  Review Key Definitions: Check the definitions of the key fields in the relevant data structure or table. Identify if both keys are indeed necessary for uniquely identifying records.
  Remove Redundant Keys: If it is determined that one of the keys is redundant, remove it from the key definition. Ensure that the remaining key(s) can still uniquely identify records.
  Consult Documentation: Refer to the SAP documentation or data model guidelines to understand the best practices for defining keys.
  Testing: After making changes, test the data structure to ensure that it functions correctly and that there are no further issues with data retrieval or integrity.
  Collaboration: If unsure, collaborate with your SAP functional team or data architects to ensure that the changes align with business requirements.
  
  Related Information:
  
  Data Dictionary (SE11): You can use transaction SE11 to view and modify the data dictionary objects, including tables and structures.
  Key Field Guidelines: Familiarize yourself with SAP's guidelines on key field definitions to avoid similar issues in the future.
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or solutions related to this error message.
  Testing Environment: Always make changes in a development or testing environment before applying them to production to avoid disruptions.
  
  By addressing the redundancy in key fields, you can resolve the error and ensure that your data structures are optimized for performance and integrity.