How To Fix CFD_REGISTRY_CHECK156 - Group By flag must not be set for CDS View without Group By

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 156

• Message text: Group By flag must not be set for CDS View without Group By

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_REGISTRY_CHECK156 - Group By flag must not be set for CDS View without Group By ?

  The SAP error message CFD_REGISTRY_CHECK156 indicates that there is an issue with the configuration of a Core Data Services (CDS) view in your SAP system. Specifically, the error states that the "Group By" flag is set for a CDS view that does not have a corresponding "GROUP BY" clause in its definition. This can lead to inconsistencies in how the data is aggregated or displayed.
  Cause:
  The primary cause of this error is that the CDS view is defined with the "Group By" option enabled, but the actual SQL query generated by the CDS view does not include any aggregation or grouping logic. This mismatch leads to the error message being triggered.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the CDS View Definition:
  
  Open the CDS view in the ABAP Development Tools (ADT) or the relevant transaction in SAP.
  Review the SQL view definition to ensure that if the "Group By" flag is set, there are appropriate aggregation functions (like SUM, COUNT, AVG, etc.) and a corresponding "GROUP BY" clause in the SELECT statement.
  
  
  
  Modify the Group By Flag:
  
  If the CDS view does not require grouping, you should disable the "Group By" flag in the view definition.
  Save and activate the CDS view after making the necessary changes.
  
  
  
  Add Aggregation Logic:
  
  If the intention was to perform aggregation, ensure that you add the necessary aggregation functions and a "GROUP BY" clause to the CDS view definition.
  
  
  
  Test the Changes:
  
  After making the 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) is a framework for defining semantically rich data models in SAP. CDS views can be used to create complex queries and data models that can be consumed by various applications.
  ABAP Development Tools (ADT): This is the primary development environment for creating and managing CDS views in SAP systems.
  SAP Notes and Documentation: Always refer to the latest SAP Notes and official documentation for any updates or specific guidelines related to CDS views and error handling.
  
  By following these steps, you should be able to resolve the CFD_REGISTRY_CHECK156 error and ensure that your CDS view is correctly configured.