How To Fix CFD_REGISTRY_CHECK206 - Alias &1 is used in more than one underlying view.

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_REGISTRY_CHECK - Custom Fields: Messages for Registry Check

• Message number: 206

• Message text: Alias &1 is used in more than one underlying view.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_REGISTRY_CHECK206 - Alias &1 is used in more than one underlying view. ?

  The SAP error message CFD_REGISTRY_CHECK206 indicates that an alias (in this case, &1) is being used in more than one underlying view in the context of Composite Provider or similar data modeling scenarios in SAP BW/4HANA or SAP BW on HANA. This can lead to ambiguity and conflicts in data retrieval, as the system cannot determine which underlying view to reference for the alias.
  Cause:
  
  Duplicate Alias Usage: The same alias name is defined in multiple underlying views that are part of the Composite Provider or the data model.
  Modeling Error: During the modeling process, the same alias might have been unintentionally assigned to different views, leading to confusion in data retrieval.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Duplicate Aliases:
  
  Check the underlying views that are part of the Composite Provider or the data model.
  Look for the alias &1 in each of the views to see where it is defined.
  
  
  
  Rename the Aliases:
  
  Change the alias name in one or more of the underlying views to ensure that each alias is unique across the views.
  Make sure to update any references to the old alias name in your queries or reports.
  
  
  
  Revalidate the Composite Provider:
  
  After making changes, revalidate the Composite Provider to ensure that the error is resolved.
  Check for any other potential issues that may arise from the changes made.
  
  
  
  Test the Data Model:
  
  Execute queries or reports that utilize the Composite Provider to ensure that the data is being retrieved correctly without any errors.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP Help Portal for detailed information on Composite Providers and data modeling best practices.
  SAP Community: Engage with the SAP Community forums to seek advice or share experiences related to similar issues.
  Data Modeling Guidelines: Follow best practices for naming conventions and alias usage in data modeling to avoid such conflicts in the future.
  
  By ensuring that each alias is unique and properly managed, you can prevent this error from occurring and maintain a clean and efficient data model in your SAP environment.