How To Fix CFD_REPOSITORY_UTIL039 - Field type &1 does not support usage of aggregating CDS view &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_REPOSITORY_UTIL - Custom Fields: Repository

• Message number: 039

• Message text: Field type &1 does not support usage of aggregating CDS view &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_REPOSITORY_UTIL039 - Field type &1 does not support usage of aggregating CDS view &2. ?

  The SAP error message CFD_REPOSITORY_UTIL039 indicates that there is an issue with the field type used in an aggregating Core Data Services (CDS) view. Specifically, it means that the field type specified (denoted as &1) does not support the aggregation operation in the context of the CDS view &2.
  Cause:
  
  Incompatible Field Type: The field type being used in the aggregating CDS view is not compatible with aggregation functions. For example, certain data types like STRING, RAW, or XSTRING cannot be aggregated.
  Incorrect Definition: The field may be defined in a way that does not allow for aggregation, such as being a non-numeric type or not being part of a valid aggregation context.
  Aggregation Context: The context in which the aggregation is being performed may not be appropriate for the field type.
  
  Solution:
  
  Check Field Types: Review the field types used in the aggregating CDS view. Ensure that all fields intended for aggregation are of compatible types (e.g., INTEGER, DECIMAL, FLOAT, etc.).
  Modify the CDS View: If a field is not suitable for aggregation, consider removing it from the aggregation context or replacing it with a compatible field.
  Use Aggregation Functions: Ensure that you are using appropriate aggregation functions (like SUM, AVG, COUNT, etc.) on fields that support them.
  Review Annotations: Check the annotations in the CDS view definition to ensure they are correctly set up for aggregation.
  Testing: After making changes, test the CDS view to ensure that it works as expected without triggering the error.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Aggregating CDS views allow for the summarization of data.
  Field Types: Familiarize yourself with the different field types supported in SAP and their compatibility with aggregation.
  SAP Documentation: Refer to the official SAP documentation for more details on CDS views, field types, and aggregation rules.
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.