How To Fix SD_CDS_PROJECTION017 - Field selection of association &1 is not supported in Projection Views

SD_CDS_PROJECTION017 - Overview

• Message type: E = Error

• Message class: SD_CDS_PROJECTION - Message for Projection Entities

• Message number: 017

• Message text: Field selection of association &1 is not supported in Projection Views

What causes this issue?

Selection of fields from associations, which are defined in CDS
Projection Views, is not supported.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

SD_CDS_PROJECTION017 - Details

• The SAP error message SD_CDS_PROJECTION017 indicates that there is an issue with the field selection of an association in a projection view within the Core Data Services (CDS) framework. This error typically arises when you attempt to select fields from an association that is not supported in the context of a projection view.
  
  Cause:
  The error occurs due to the following reasons:
  
  Field Selection from Associations: In projection views, you can only select fields from the main entity and not from associated entities. If you try to include fields from an associated entity, the system will raise this error.
  Incorrect CDS View Definition: The projection view may be incorrectly defined, where fields from an association are being referenced directly.
  Incompatibility with Projection Views: Certain associations may not be compatible with projection views due to the way they are structured or defined.
  
  
  Solution:
  To resolve the SD_CDS_PROJECTION017 error, you can take the following steps:
  
  
  Review the CDS View Definition:
  
  Check