How To Fix RSFBP121 - Direct usage (inheritance) is not set for key field &1 with association

SAP Error Message - Details

• Message type: E = Error

• Message class: RSFBP - Open ODS Layer Object

• Message number: 121

• Message text: Direct usage (inheritance) is not set for key field &1 with association

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSFBP121 - Direct usage (inheritance) is not set for key field &1 with association ?

  The SAP error message RSFBP121 indicates that there is an issue with the configuration of a key field in a data model, specifically related to direct usage (inheritance) not being set for a key field with an association. This error typically arises in the context of SAP BW (Business Warehouse) or SAP HANA modeling, where data models are defined with associations between different entities.
  Cause:
  The error occurs when:
  
  A key field in a data model is associated with another entity, but the direct usage (inheritance) setting is not configured correctly.
  The key field is expected to inherit properties or values from the associated entity, but this inheritance is not defined, leading to inconsistencies in the data model.
  
  Solution:
  To resolve the RSFBP121 error, you can follow these steps:
  
  
  Check the Data Model Configuration:
  
  Open the data model where the error is occurring.
  Identify the key field mentioned in the error message (denoted as &1).
  Review the associations related to this key field.
  
  
  
  Set Direct Usage (Inheritance):
  
  Navigate to the properties of the key field.
  Look for an option related to "Direct Usage" or "Inheritance".
  Ensure that the direct usage is set correctly for the key field. This may involve enabling inheritance or defining how the key field should inherit values from the associated entity.
  
  
  
  Validate Associations:
  
  Ensure that the associations between the entities are correctly defined.
  Check if the associated entity is active and properly configured.
  
  
  
  Rebuild or Activate the Data Model:
  
  After making the necessary changes, save the configuration.
  Rebuild or activate the data model to ensure that the changes take effect.
  
  
  
  Test the Configuration:
  
  Run a test query or report that utilizes the data model to confirm that the error has been resolved.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for detailed information on data modeling, associations, and key fields.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Community Forums: Engage with SAP community forums or support channels for shared experiences and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the RSFBP121 error and ensure that your data model is correctly configured for direct usage and inheritance.