How To Fix GK527 - Relationships of hierarchy levels &1 and &2 are reciprocal

SAP Error Message - Details

• Message type: E = Error

• Message class: GK - Messages for SAP Consolidation

• Message number: 527

• Message text: Relationships of hierarchy levels &1 and &2 are reciprocal

What causes this issue?

The relationhip between hierarchy levels &V1& and &V2& is reciprocal
and therefore invalid.

System Response

Error message

How to fix this error?

Redefine the relationhip between the hierarchy levels so that it is not
reciprocal.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GK527 - Relationships of hierarchy levels &1 and &2 are reciprocal ?

  The SAP error message GK527, which states "Relationships of hierarchy levels &1 and &2 are reciprocal," typically occurs in the context of hierarchical data structures, such as those used in SAP's Controlling (CO) module or other areas where hierarchical relationships are defined.
  Cause:
  This error arises when there is a reciprocal relationship defined between two hierarchy levels. In other words, if level A is defined as a parent of level B, and level B is also defined as a parent of level A, this creates a circular reference, which is not allowed in hierarchical structures. This can happen due to:
  
  Incorrect Hierarchy Configuration: The hierarchy levels have been incorrectly set up, leading to a circular relationship.
  Data Entry Errors: Manual entry errors when defining relationships between hierarchy levels.
  System Migration Issues: If data has been migrated from another system, it may have introduced inconsistencies in the hierarchy relationships.
  
  Solution:
  To resolve the GK527 error, you can follow these steps:
  
  
  Review Hierarchy Definitions: Check the definitions of the hierarchy levels involved in the error message. Ensure that there are no reciprocal relationships defined.
  
  
  Correct Relationships: If you find that the relationships are indeed reciprocal, you will need to correct them. This may involve:
  
  Removing one of the reciprocal relationships.
  Redefining the hierarchy levels to ensure a proper parent-child relationship without circular references.
  
  
  
  Use Transaction Codes: You can use transaction codes like KSH1 (Create Cost Center Hierarchy) or KSH2 (Change Cost Center Hierarchy) to review and modify the hierarchy settings.
  
  
  Check for Dependencies: Ensure that there are no other dependencies or settings that might be causing the issue. Sometimes, other related configurations might need to be adjusted.
  
  
  Testing: After making changes, test the hierarchy to ensure that the error no longer occurs and that the hierarchy functions as expected.
  
  
  Related Information:
  
  Documentation: Refer to SAP documentation for detailed guidelines on setting up and managing hierarchies in the specific module you are working with (e.g., Controlling, Project System).
  SAP Notes: Check SAP Notes for any known issues or patches related to hierarchy management that might address this error.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to identify and resolve the cause of the GK527 error in your SAP system.