How To Fix APS_CKE_PARSER044 - CDS view of DDL &1 is invalid.

APS_CKE_PARSER044 - Overview

• Message type: E = Error

• Message class: APS_CKE_PARSER - CDS Key user tool - AST handler messages

• Message number: 044

• Message text: CDS view of DDL &1 is invalid.

Self-Explanatory Message

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APS_CKE_PARSER044 - Details

• The SAP error message APS_CKE_PARSER044 indicates that there is an issue with a Core Data Services (CDS) view, specifically that the view's definition is invalid. This can occur for several reasons, including syntax errors, missing dependencies, or issues with the underlying database objects.
  Causes:
  
  Syntax Errors: There may be a typo or incorrect syntax in the CDS view definition.
  Missing Dependencies: The CDS view may reference other views, tables, or fields that do not exist or have been changed.
  Incompatible Data Types: If the view is trying to combine fields of incompatible data types, it can lead to invalid definitions.
  Authorization Issues: The user may not have the necessary authorizations to access the underlying objects.
  Database Issues: There may be issues with the underlying database that prevent the view from being activated or executed.
  
  Solutions:
  
  Check Syntax: Review the CDS view definition for any syntax errors. Use the ABAP Development Tools (ADT) in Eclipse or the SAP GUI