How To Fix CFD_REGISTRY_CHECK203 - Group by clause must not be set in union branch of subview &1.

CFD_REGISTRY_CHECK203 - Overview

• Message type: E = Error

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

• Message number: 203

• Message text: Group by clause must not be set in union branch of subview &1.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_REGISTRY_CHECK203 - Group by clause must not be set in union branch of subview &1. ?

  The SAP error message CFD_REGISTRY_CHECK203 indicates that there is an issue with the use of the GROUP BY clause in a union branch of a subview in your SAP system. This error typically arises when you are trying to create or modify a CDS (Core Data Services) view that involves unions, and you have incorrectly applied a GROUP BY clause in one of the branches of the union.
  
  Cause:
  The error occurs because, in a union operation, all branches must have the same structure and semantics. The GROUP BY clause is not allowed in one of the branches of a union because it can lead to ambiguity in the result set. The SQL standard requires that all SELECT statements in a UNION must have the same number of columns and compatible data types, and using GROUP BY in one branch can violate this rule.
  
  Solution:
  To resolve this error, you should ensure that:
  
  
  Remove the