BRAIN_DEV155 - Default query for CDS views not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN_DEV - BRAIN messages (for use by development)

• Message number: 155

• Message text: Default query for CDS views not supported

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message BRAIN_DEV155 - Default query for CDS views not supported ?

  The SAP error message BRAIN_DEV155 indicates that the default query for Core Data Services (CDS) views is not supported. This typically occurs when you are trying to create or execute a query on a CDS view that does not have the necessary configurations or annotations to support default queries.
  Causes:
  
  Missing Annotations: The CDS view may not have the required annotations that enable it to be used as a default query. For example, it may lack the @Analytics.query annotation.
  Incompatible Data Model: The structure of the CDS view may not be compatible with the default query functionality, such as missing key fields or aggregation definitions.
  Technical Issues: There may be underlying technical issues with the CDS view or the system configuration that prevent the default query from being executed.
  
  Solutions:
  
  Check Annotations: Ensure that the CDS view has the necessary annotations. You can add the @Analytics.query annotation to the CDS view definition if it is missing.
  @AbapCatalog.sqlViewName: 'Z_MY_CDS_VIEW'
  @Analytics.query: true
  define view Z_MY_CDS_VIEW as select from ...
  
  Review the Data Model: Verify that the CDS view is designed correctly. Ensure that it includes all necessary fields and that the data model aligns with the requirements for default queries.
  Use Alternative Queries: If the CDS view cannot be modified or if it is not suitable for default queries, consider creating a different query or using a different CDS view that supports default queries.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as there may be bug fixes or enhancements related to CDS views and queries.
  Consult Documentation: Refer to the official SAP documentation for CDS views and analytics queries to ensure compliance with best practices and guidelines.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or fixes related to the BRAIN_DEV155 error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  CDS View Documentation: Review the documentation on CDS views and their annotations to understand how to properly configure them for analytics and queries.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.