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

APB_FPM_GUIBB012 - Overview

• 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.

APB_FPM_GUIBB012 - Details

• 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