How To Fix SD_CDS_PROJECTION020 - Definition of Filters in Path Expressions is not supported yet

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_CDS_PROJECTION - Message for Projection Entities

• Message number: 020

• Message text: Definition of Filters in Path Expressions is not supported yet

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_PROJECTION020 - Definition of Filters in Path Expressions is not supported yet ?

  The SAP error message SD_CDS_PROJECTION020 indicates that there is an issue with the definition of filters in path expressions within a Core Data Services (CDS) view. This error typically arises when you are trying to use a filter in a way that is not supported by the current version of the CDS framework or the specific context in which you are working.
  Cause:
  
  Unsupported Filter Usage: The error occurs when you attempt to apply filters on associations or paths in a way that is not allowed. For example, using certain types of filters on navigational paths that are not supported by the CDS framework.
  Version Limitations: The version of SAP you are using may not support certain features or functionalities related to CDS views and their filters.
  Incorrect Syntax: There may be a syntax error in the way the filter is defined in the CDS view.
  
  Solution:
  
  Review the CDS View Definition: Check the definition of your CDS view and ensure that you are not using unsupported filters. Make sure that the filters are applied correctly according to the CDS syntax.
  Update SAP Version: If you are using an older version of SAP, consider upgrading to a newer version that supports the features you are trying to use.
  Refactor the Query: If the filter cannot be applied directly, consider refactoring your query. You may need to break down the query into simpler parts or use alternative methods to achieve the desired results without using unsupported filters.
  Consult Documentation: Refer to the official SAP documentation for Core Data Services to understand the limitations and supported features regarding filters in path expressions.
  Seek Help from SAP Community: If you are unable to resolve the issue, consider reaching out to the SAP Community or forums for assistance. Other users may have encountered similar issues and can provide insights or solutions.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates on the functionality of CDS views.
  SAP Help Portal: The SAP Help Portal contains extensive documentation on CDS views, including examples and best practices.
  CDS View Development: Familiarize yourself with the best practices for developing CDS views, including how to properly use associations and filters.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.