How To Fix RSFBP104 - Only one key field can be the representative key field

SAP Error Message - Details

• Message type: E = Error

• Message class: RSFBP - Open ODS Layer Object

• Message number: 104

• Message text: Only one key field can be the representative key field

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSFBP104 - Only one key field can be the representative key field ?

  The SAP error message RSFBP104, which states "Only one key field can be the representative key field," typically occurs in the context of SAP BW (Business Warehouse) when you are trying to define a representative key field in a data model or InfoObject. This error indicates that you have attempted to set more than one key field as the representative key field, which is not allowed.
  Cause:
  
  Multiple Key Fields Defined: You may have defined multiple fields as key fields in your InfoObject or data model, and the system is unable to determine which one should be the representative key field.
  Configuration Error: There might be a configuration error in the way the InfoObject or data model is set up, leading to ambiguity in key field designation.
  
  Solution:
  
  
  Review Key Field Settings:
  
  Go to the InfoObject or data model where the error is occurring.
  Check the settings for key fields and ensure that only one field is marked as the representative key field.
  If you have multiple fields marked, choose the appropriate one and deselect the others.
  
  
  
  Adjust Data Model:
  
  If the error is occurring in a data model, review the model's structure and ensure that it adheres to the requirement of having a single representative key field.
  
  
  
  Re-validate the InfoObject:
  
  After making changes, re-validate the InfoObject or data model to ensure that the error is resolved.
  
  
  
  Check Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on defining key fields and representative key fields in your version of SAP BW.
  
  
  
  Related Information:
  
  Key Fields in SAP BW: Key fields are essential for uniquely identifying records in a data model. The representative key field is used for aggregation and reporting purposes.
  SAP Notes and Support: If the issue persists, consider checking SAP Notes for any known issues or patches related to this error message. You can also reach out to SAP support for assistance.
  Training and Best Practices: Familiarize yourself with best practices for data modeling in SAP BW to avoid similar issues in the future.
  
  By following these steps, you should be able to resolve the RSFBP104 error and ensure that your data model or InfoObject is correctly configured.