How To Fix APB_FPM_GUIBB012 - Parent key for hierarchy is not defined correctly

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_GUIBB -

• Message number: 012

• Message text: Parent key for hierarchy is not defined correctly

What causes this issue?

The master column in the hierarchical list GUIBB needs to be defined in
the feeder class GET_DEFINITION method by defining the column types for
the master column. The parent key column is incorrectly defined in the
feeder class.

System Response

The system displays an error message at design time.

How to fix this error?

Open the GET_DEFINITION method of the feeder class and define the parent
key for the master column correctly.

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 APB_FPM_GUIBB012 - Parent key for hierarchy is not defined correctly ?

  The SAP error message APB_FPM_GUIBB012 indicates that there is an issue with the parent key for a hierarchy not being defined correctly in the context of a Floorplan Manager (FPM) application. This error typically arises when the application is trying to display hierarchical data, but the relationships between parent and child nodes are not properly established.
  Cause:
  
  Incorrect Configuration: The hierarchy configuration in the FPM application might be incorrect. This could be due to missing or incorrect parent-child relationships in the data model.
  Data Issues: The underlying data might not have the necessary parent keys defined, leading to inconsistencies in the hierarchy.
  Modeling Errors: If the data model or the OData service used by the FPM application is not correctly set up to handle hierarchical data, this error can occur.
  Authorization Issues: Sometimes, the user might not have the necessary authorizations to view certain data, which can lead to this error.
  
  Solution:
  
  Check Hierarchy Configuration: Review the configuration of the hierarchy in the FPM application. Ensure that the parent-child relationships are correctly defined in the data model.
  Validate Data: Check the underlying data to ensure that all necessary parent keys are defined. You may need to run queries or reports to identify any missing relationships.
  Review OData Service: If the application uses an OData service, ensure that the service is correctly implemented to support hierarchical data. Check the service metadata for proper definitions of parent-child relationships.
  Debugging: Use debugging tools to trace the execution of the application and identify where the error is occurring. This can help pinpoint the exact cause of the issue.
  Authorization Check: Ensure that the user has the necessary authorizations to access the data being displayed. If there are restrictions, adjust the roles and authorizations accordingly.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on hierarchical data handling in FPM applications.
  Documentation: Review the official SAP documentation for Floorplan Manager and hierarchical data handling to ensure compliance with best practices.
  Community Forums: Engage with SAP community forums or support channels to see if other users have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to identify and resolve the issue causing the APB_FPM_GUIBB012 error in your SAP application.