How To Fix DU604 - Only one key area without a field name is allowed (value area &)

SAP Error Message - Details

• Message type: E = Error

• Message class: DU - Data transfer to SAP-EIS

• Message number: 604

• Message text: Only one key area without a field name is allowed (value area &)

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 DU604 - Only one key area without a field name is allowed (value area &) ?

  The SAP error message DU604 "Only one key area without a field name is allowed (value area &)" typically occurs in the context of data modeling or configuration in SAP, particularly when dealing with data sources, InfoObjects, or similar structures in SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  This error arises when you are trying to define a key area in a data model or InfoObject without specifying a field name, and there is already another key area defined without a field name. In SAP, key areas are used to define how data is structured and accessed, and having multiple key areas without field names can lead to ambiguity in data retrieval and processing.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Key Area Definitions: Review the definitions of the key areas in your data model or InfoObject. Ensure that you only have one key area defined without a field name. If you find multiple key areas without field names, you will need to modify them.
  
  
  Specify Field Names: If you need multiple key areas, make sure that each key area has a unique field name associated with it. This will eliminate the ambiguity and allow the system to process the data correctly.
  
  
  Modify the Data Model: If you are working with a data model, consider restructuring it to ensure that the key areas are defined correctly. You may need to remove or rename existing key areas to comply with the requirement of having only one key area without a field name.
  
  
  Consult Documentation: Refer to SAP documentation or help resources related to the specific module you are working with (e.g., SAP BW, SAP HANA) for more detailed guidance on defining key areas and InfoObjects.
  
  
  Testing: After making the necessary changes, test the data model or InfoObject to ensure that the error is resolved and that data can be processed as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or official SAP documentation on data modeling and InfoObject configuration to better understand the requirements and best practices.
  
  By following these steps, you should be able to resolve the DU604 error and ensure that your SAP configuration is set up correctly.