How To Fix DMWB_MSG016 - Standard attributes must not be evaluated more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: DMWB_MSG - Messages of Document Modeling Workbench

• Message number: 016

• Message text: Standard attributes must not be evaluated more than once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMWB_MSG016 - Standard attributes must not be evaluated more than once ?

  The SAP error message DMWB_MSG016 indicates that standard attributes in a Data Warehouse (BW) process are being evaluated more than once, which is not allowed. This typically occurs in the context of data modeling or data extraction processes where standard attributes are defined in a way that they are being processed multiple times, leading to inefficiencies or conflicts.
  Cause:
  
  Duplicate Evaluation: The error usually arises when a standard attribute is referenced multiple times in a transformation or data flow. This can happen if the same attribute is included in multiple data sources or transformations inadvertently.
  Incorrect Data Flow Design: The design of the data flow may not be optimal, leading to the same attribute being processed in different parts of the flow.
  Configuration Issues: There may be configuration settings in the BW system that are causing the attributes to be evaluated multiple times.
  
  Solution:
  
  Review Data Flow: Check the data flow and transformation logic to ensure that standard attributes are only being evaluated once. Look for any duplicate references to the same attribute.
  Optimize Transformations: If you find that the same attribute is being processed in multiple transformations, consider consolidating these transformations or adjusting the logic to ensure that the attribute is only evaluated once.
  Check Data Sources: Ensure that the data sources being used do not inadvertently cause the same attribute to be pulled multiple times.
  Use of InfoObjects: If applicable, consider using InfoObjects or other structures that can help manage the attributes more effectively without causing duplication.
  Consult Documentation: Refer to SAP documentation or notes related to this error message for any specific guidelines or updates that may address the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  BW Modeling Tools: Familiarize yourself with the BW modeling tools and best practices to avoid such issues in the future.
  Performance Considerations: Understanding the performance implications of evaluating attributes multiple times can help in designing more efficient data flows.
  
  If the issue persists after following these steps, it may be beneficial to consult with SAP support or a BW expert who can provide more tailored assistance based on the specific configuration and context of your BW system.