How To Fix DMWB_MSG027 - Standard assignment attributes cannot be valuated more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: DMWB_MSG - Messages of Document Modeling Workbench

• Message number: 027

• Message text: Standard assignment attributes cannot be valuated more than once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMWB_MSG027 - Standard assignment attributes cannot be valuated more than once ?

  The SAP error message DMWB_MSG027 indicates that standard assignment attributes in a data model cannot be assigned values more than once. This typically occurs in the context of data modeling or data transformation processes, particularly when working with SAP Data Warehousing or SAP BW (Business Warehouse).
  Cause:
  The error arises when there is an attempt to assign a value to a standard assignment attribute that has already been assigned a value in the same context. Standard assignment attributes are designed to hold a single value for a given context, and attempting to assign a second value violates this rule.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Data Model: Check the data model or transformation logic where the error occurs. Identify the standard assignment attribute that is being assigned multiple values.
  
  
  Check Data Flow: Ensure that the data flow does not inadvertently lead to multiple assignments. This may involve reviewing the source data, transformation rules, or any joins that might be causing the duplication.
  
  
  Modify Logic: If the logic is intended to assign different values based on certain conditions, consider using conditional logic (e.g., CASE statements) to ensure that only one value is assigned to the attribute.
  
  
  Use Different Attributes: If multiple values are genuinely needed, consider using different attributes or creating a new attribute to hold the additional values instead of reassigning the same standard assignment attribute.
  
  
  Debugging: Utilize debugging tools within SAP to trace the execution of the data flow and identify where the multiple assignments are occurring.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on handling standard assignment attributes in your version of SAP.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Training and Documentation: Review training materials or documentation related to data modeling in SAP BW or SAP HANA, as they may provide insights into best practices for managing assignment attributes.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to prevent it from occurring in the future.