How To Fix DD_CDS_ANALYSIS127 - For the selection of element &, association & is not necessary.

SAP Error Message - Details

• Message type: E = Error

• Message class: DD_CDS_ANALYSIS - CDS code inspector messages

• Message number: 127

• Message text: For the selection of element &, association & is not necessary.

What causes this issue?

The association &V2& is not necessary for the selection of the attribute
&V1&, because ? due to the underlying On clause ? the value is already
contained in &V3& (attribute: &V4& ). Use of the association at this
point causes a LEFT OUTER JOIN in the database view.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DD_CDS_ANALYSIS127 - For the selection of element &, association & is not necessary. ?

  The SAP error message DD_CDS_ANALYSIS127 typically occurs in the context of Core Data Services (CDS) views when there is an issue with the selection of elements and associations in your CDS view definition. The message indicates that the selection of a specific element or association is not necessary, which usually means that the element or association is not being used in a meaningful way in the context of the CDS view.
  Cause:
  
  Redundant Selection: The element or association you are trying to select may not be needed for the output of the CDS view. This can happen if the selected fields are not part of the final output or if they are not being used in any calculations or filters.
  Incorrect Associations: The association may not be correctly defined or may not be relevant to the data being retrieved.
  Modeling Issues: There may be issues in the way the CDS view is modeled, such as unnecessary joins or associations that do not contribute to the final result set.
  
  Solution:
  
  Review the CDS View Definition: Check the definition of your CDS view to ensure that all selected fields and associations are necessary for your use case. Remove any redundant fields or associations that are not contributing to the output.
  Check Associations: Ensure that the associations you are using are correctly defined and relevant to the data you want to retrieve. If an association is not needed, consider removing it.
  Use Annotations: If you are using annotations, ensure that they are correctly applied and that they do not conflict with the selected fields or associations.
  Test the View: After making changes, test the CDS view to ensure that it behaves as expected and that the error message no longer appears.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) are a way to define semantic data models in SAP. They allow for the definition of complex data models that can be consumed by various applications.
  SAP Documentation: Refer to the official SAP documentation for more details on CDS views, associations, and how to properly define them.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.