How To Fix SABP_KEY_REDUNDANCY027 - The components of &2 are contained in &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SABP_KEY_REDUNDANCY - Superfluous Keys Messages

• Message number: 027

• Message text: The components of &2 are contained in &1

What causes this issue?

The table keys &V1& and &V2& are unique and the components of &V2& are
an initial part (SORTED) or a subset (HASHED) of &V1&. Check whether
&V1& can be removed.
INCLUDE INCL_MIGRATION_SCENARIO
Since both keys have the same access semantics but key &V2& has fewer
components, access with &V2& provides better performance. Check whether
the redundant keys were created in a migration scenario and whether one
of the two 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_REDUNDANCY027 - The components of &2 are contained in &1 ?

  The SAP error message SABP_KEY_REDUNDANCY027 indicates that there is a redundancy issue with the components of a particular assembly or product. Specifically, it means that the components of the assembly (identified as &2) are already included in another assembly or product (identified as &1). This typically occurs in the context of Bill of Materials (BOM) or product structure management.
  Cause:
  
  Redundant Components: The components of the assembly you are trying to create or modify are already part of another assembly. This can happen if you are trying to create a nested BOM where the same components are used in multiple assemblies.
  Incorrect BOM Structure: The structure of the BOM may not be set up correctly, leading to overlaps in component assignments.
  Data Entry Errors: There may be mistakes in the data entry process, such as incorrectly assigning components to multiple assemblies.
  
  Solution:
  
  Review BOM Structure: Check the BOM structure for both assemblies involved. Ensure that the components are not redundantly assigned to multiple assemblies unless intended.
  Modify Assembly Composition: If the components are indeed meant to be unique to each assembly, consider modifying the assembly composition to eliminate the redundancy.
  Use Alternative Components: If possible, replace the redundant components with alternative components that fulfill the same function but are not already assigned to another assembly.
  Consult Documentation: Review SAP documentation or guidelines regarding BOM management to ensure compliance with best practices.
  Check for Configuration Settings: Sometimes, configuration settings in SAP can lead to such issues. Ensure that the settings for BOM management are correctly configured.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CS01 (Create BOM), CS02 (Change BOM), or CS03 (Display BOM) to manage BOMs.
  SAP Notes: Check SAP Notes for any known issues or patches related to BOM management that might address this error.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to create or modify BOMs, as restrictions can sometimes lead to unexpected errors.
  Training and Documentation: If you are frequently encountering this error, consider additional training on BOM management in SAP to better understand how to structure assemblies and components.
  
  By following these steps, you should be able to resolve the error and manage your BOMs more effectively.