How To Fix SADL_GW_DT_CDS047 - Inherited foreign key association &1 is not exposed in the CDS view &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 047

• Message text: Inherited foreign key association &1 is not exposed in the CDS view &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_CDS047 - Inherited foreign key association &1 is not exposed in the CDS view &2. ?

  The SAP error message SADL_GW_DT_CDS047 indicates that there is an issue with the foreign key association in a Core Data Services (CDS) view. Specifically, it means that an inherited foreign key association is not exposed in the CDS view you are working with. This can occur when you are trying to use a foreign key association that is defined in a parent CDS view but is not available in the child CDS view.
  Cause
  The error typically arises due to one of the following reasons:
  
  Missing Exposure: The foreign key association is defined in a parent CDS view but is not explicitly exposed in the child CDS view.
  Incorrect Association Definition: The association might not be correctly defined in the CDS view.
  Incompatibility: The data model might have changed, and the foreign key association is no longer valid or applicable.
  
  Solution
  To resolve this error, you can take the following steps:
  
  
  Check the Parent CDS View: Verify that the foreign key association is correctly defined in the parent CDS view. Ensure that it is marked for exposure.
  
  
  Expose the Foreign Key Association: In the child CDS view, you need to explicitly expose the foreign key association. You can do this by adding the association to the child view's definition. For example:
  define view ZChildView
  as select from ZParentView
  association [0..1] to ZRelatedView as _Related
  on $projection.ForeignKeyField = _Related.KeyField
  {
      // other fields
      _Related
  }
  
  
  Check for Inheritance: If you are using inheritance in your CDS views, ensure that the child view correctly inherits the associations from the parent view.
  
  
  Recheck the Data Model: If there have been recent changes to the data model, ensure that all associations are still valid and that the foreign key relationships are intact.
  
  
  Activate the CDS Views: After making changes, ensure that you activate both the parent and child CDS views to reflect the changes.
  
  
  Test the Changes: After making the necessary adjustments, test the CDS view to ensure that the error is resolved and that the foreign key association works as expected.
  
  
  Related Information
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how associations and inheritance work in CDS views is crucial for troubleshooting issues like this.
  SAP Documentation: Refer to the official SAP documentation for detailed information on CDS views, associations, and how to define them properly.
  SAP Community: Engaging with the SAP Community can provide additional 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_CDS047 error and ensure that your CDS views are correctly defined and functional.