How To Fix SADL_GW_DT_CDS024 - Association #TO_COMPOSITION_PARENT in CDS view &1 defined multiple times

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 024

• Message text: Association #TO_COMPOSITION_PARENT in CDS view &1 defined multiple times

What causes this issue?

The association that is annotated with @ObjectModel.association.type:
#TO_COMPOSITION_PARENT is defined multiple times, either in the local
CDS view or through an inheritance from an underlying CDS view.

System Response

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

How to fix this error?

To check the active annotations in the CDS view in Eclipse, right-click
Open With -> Active Annotations.
Define the association annotated with @ObjectModel.association.type:
#TO_COMPOSITION_PARENT only once.

Procedure for System Administrators

Contact the corresponding developer of the CDS view to correct the
error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_CDS024 - Association #TO_COMPOSITION_PARENT in CDS view &1 defined multiple times ?

  The SAP error message SADL_GW_DT_CDS024 indicates that there is an issue with the definition of a CDS (Core Data Services) view where an association named TO_COMPOSITION_PARENT is defined multiple times. This typically occurs when the same association is declared more than once within the same CDS view or when there are conflicting definitions in the associated views.
  Cause:
  
  Duplicate Association Definition: The most common cause is that the association TO_COMPOSITION_PARENT is defined multiple times in the same CDS view or in the views that are being used in the CDS view.
  Inconsistent Associations: If the association is defined in multiple places with different characteristics (e.g., different cardinalities or filters), it can lead to this error.
  Inheritance Issues: If the CDS view is inheriting from another view that also defines the same association, it can cause a conflict.
  
  Solution:
  
  Check for Duplicates: Review the CDS view definition to ensure that the association TO_COMPOSITION_PARENT is defined only once. Remove any duplicate definitions.
  Consolidate Definitions: If the association needs to be defined in multiple places, consider consolidating the logic into a single definition and referencing it appropriately.
  Review Inherited Views: If the CDS view inherits from another view, check the parent view for the same association. You may need to adjust the inheritance or redefine the association in a way that avoids conflicts.
  Use Aliases: If you need to reference the same association in different contexts, consider using aliases to differentiate them.
  Check for Changes: If the CDS view has been modified recently, ensure that all changes are consistent and that no conflicting definitions have been introduced.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how associations work in CDS views is crucial for resolving such issues.
  SAP Documentation: Refer to the official SAP documentation on CDS views and associations for detailed guidelines on defining and managing associations.
  SAP Community: Engaging with the SAP Community can provide insights and solutions from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the SADL_GW_DT_CDS024 error and ensure that your CDS view is correctly defined without duplicate associations.