How To Fix CFD_REGISTRY_CHECK123 - On clause of Association &1 in CDS View &2 has unsupported statement

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 123

• Message text: On clause of Association &1 in CDS View &2 has unsupported statement

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_REGISTRY_CHECK123 - On clause of Association &1 in CDS View &2 has unsupported statement ?

  The SAP error message CFD_REGISTRY_CHECK123 indicates that there is an issue with the On clause of an association in a Core Data Services (CDS) view. This error typically arises when the association defined in the CDS view does not comply with the expected syntax or semantics.
  Cause:
  
  Unsupported Statement: The On clause may contain unsupported statements or expressions that cannot be processed by the CDS framework.
  Incorrect Join Conditions: The join conditions specified in the On clause may not be valid or may reference fields that are not compatible.
  Data Type Mismatch: There may be a mismatch in data types between the fields being joined.
  Missing Associations: The association being referenced may not be defined correctly or may be missing.
  Syntax Errors: There could be syntax errors in the CDS view definition.
  
  Solution:
  
  Review the On Clause: Check the On clause of the specified association in the CDS view. Ensure that it follows the correct syntax and that all fields referenced are valid.
  Check Data Types: Verify that the data types of the fields being joined are compatible. If there is a mismatch, consider casting the fields to the appropriate types.
  Validate Associations: Ensure that all associations referenced in the On clause are correctly defined in the CDS view.
  Simplify the On Clause: If the On clause is complex, try simplifying it to isolate the issue. Start with a basic join condition and gradually add complexity.
  Use CDS Annotations: Make sure to use the appropriate CDS annotations if required, as they can affect how the associations are processed.
  Check for Updates: Ensure that your SAP system is up to date, as some issues may be resolved in newer versions or patches.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how to define associations and their On clauses is crucial.
  SAP Documentation: Refer to the official SAP documentation for CDS views and associations for detailed syntax and examples.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions.
  Debugging Tools: Use the ABAP Development Tools (ADT) in Eclipse to debug the CDS view and check for any underlying issues.
  
  By following these steps, you should be able to identify and resolve the issue causing the CFD_REGISTRY_CHECK123 error in your CDS view.