How To Fix RSDF_GENERATOR039 - Compounded characteristic &1 must also be a key

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDF_GENERATOR - Messages for Data Flow Wizard

• Message number: 039

• Message text: Compounded characteristic &1 must also be a key

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDF_GENERATOR039 - Compounded characteristic &1 must also be a key ?

  The SAP error message RSDF_GENERATOR039 indicates that a compounded characteristic in your data model must also be defined as a key characteristic. This error typically arises in the context of SAP BW (Business Warehouse) when you are working with InfoObjects, especially when defining compounded characteristics in your data model.
  Cause:
  The error occurs because:
  
  Compounded Characteristic: You are trying to use a compounded characteristic (a characteristic that is made up of multiple other characteristics) that is not defined as a key characteristic in the InfoObject definition.
  Key Requirement: In SAP BW, compounded characteristics must include at least one key characteristic to ensure that the data can be uniquely identified and processed correctly.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Definition of the Compounded Characteristic:
  
  Go to the InfoObject maintenance transaction (e.g., RSD1).
  Locate the compounded characteristic that is causing the error.
  
  
  
  Modify the Compounded Characteristic:
  
  Ensure that at least one of the characteristics that make up the compounded characteristic is defined as a key characteristic.
  If none of the components are key characteristics, you may need to redefine the compounded characteristic or adjust the underlying characteristics.
  
  
  
  Adjust Key Settings:
  
  If necessary, change the settings of the individual characteristics that are part of the compounded characteristic to make one or more of them key characteristics.
  
  
  
  Re-activate the InfoObject:
  
  After making the necessary changes, you may need to activate the InfoObject again to ensure that the changes take effect.
  
  
  
  Check for Dependencies:
  
  Ensure that there are no other dependencies or settings that might be causing the issue. Sometimes, other InfoObjects or data models may have constraints that affect your compounded characteristic.
  
  
  
  Related Information:
  
  Compounded Characteristics: These are used to group multiple characteristics together for reporting purposes. They allow for more complex data modeling but come with specific requirements.
  Key Characteristics: These are essential for uniquely identifying records in a data model. They are critical for ensuring data integrity and proper data retrieval.
  SAP BW Documentation: For more detailed information, refer to the official SAP BW documentation or help resources, which provide guidelines on defining and managing InfoObjects and characteristics.
  
  By following these steps, you should be able to resolve the RSDF_GENERATOR039 error and ensure that your compounded characteristic is correctly defined within your SAP BW environment.