How To Fix SADL_GW_DT_CDS039 - The target of the composition association &1 must be a consumption view.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 039

• Message text: The target of the composition association &1 must be a consumption view.

What causes this issue?

Within a transactional consumption CDS view, it is only possible to
define a composition association to an item view that is also a
transactional consumption CDS view. The item view may not be a
transactional 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?

Create a transactional consumption CDS view based on the transactional
view that can be used for a composition association within the
transactional consumption CDS view.

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_CDS039 - The target of the composition association &1 must be a consumption view. ?

  The SAP error message SADL_GW_DT_CDS039 indicates that there is an issue with the composition association in a Core Data Services (CDS) view. Specifically, it states that the target of the composition association must be a consumption view. This error typically arises when you are trying to create or use a CDS view that has a composition association pointing to a non-consumption view.
  Cause:
  
  Incorrect Target View: The target of the composition association is not a consumption view. In SAP, a consumption view is a CDS view that is designed to be consumed by applications, such as OData services, while a non-consumption view may be a more complex or internal view that is not intended for direct consumption.
  Modeling Error: There may be a modeling error in the CDS view definition where the association is incorrectly defined.
  
  Solution:
  
  Check the Target View: Ensure that the target of the composition association is indeed a consumption view. You can do this by checking the definition of the target view in the ABAP Development Tools (ADT) or in the SAP GUI.
  Change the Association: If the target view is not a consumption view, you will need to either:
  
  Change the target to a valid consumption view.
  Redefine the association in your CDS view to point to a different view that is a consumption view.
  
  
  Create a Consumption View: If the target view is necessary for your application but is not a consumption view, consider creating a new consumption view that wraps around the existing view and exposes the necessary fields.
  Review Documentation: Refer to the SAP documentation on CDS views and associations to ensure that you are following best practices in your modeling.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining and consuming semantically rich data models in SAP. Understanding the difference between consumption views and other types of views is crucial.
  OData Services: If you are using CDS views to expose OData services, ensure that the views are properly defined to be consumable by the OData service.
  SAP Notes and Community: Check SAP Notes for any known issues or updates related to this error message. The SAP Community can also be a valuable resource for troubleshooting and finding solutions shared by other users.
  
  By following these steps, you should be able to resolve the error and ensure that your CDS view is correctly defined for use in your application.