How To Fix SD_CDS_ENTITY020 - Type of selectlist entry not yet supported (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_CDS_ENTITY - Messages for STOBS/entities

• Message number: 020

• Message text: Type of selectlist entry not yet supported (&)

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_ENTITY020 - Type of selectlist entry not yet supported (&) ?

  The SAP error message SD_CDS_ENTITY020 with the description "Type of selectlist entry not yet supported" typically occurs in the context of SAP S/4HANA when working with Core Data Services (CDS) views, particularly in the Sales and Distribution (SD) module. This error indicates that there is an issue with the way a select list entry is being handled in a CDS view or in a related query.
  Cause:
  
  Unsupported Data Type: The error often arises when the CDS view is trying to use a data type or structure that is not supported in the context of the select list. This can happen if the CDS view is trying to select fields that are not compatible with the expected output format.
  Incorrect Annotations: If the annotations in the CDS view are not correctly defined, it can lead to this error. Annotations are used to define how the data should be processed and displayed.
  Incompatible Join Conditions: If there are joins in the CDS view that are not properly defined or if they involve unsupported data types, this can trigger the error.
  Version Compatibility: Sometimes, the error can be related to the version of SAP S/4HANA being used, especially if there are features or data types that are not available in the current version.
  
  Solution:
  
  Review the CDS View: Check the definition of the CDS view for any unsupported data types or structures. Ensure that all fields being selected are compatible with the expected output.
  Check Annotations: Verify that the annotations used in the CDS view are correctly defined and appropriate for the fields being selected.
  Simplify the Query: If possible, simplify the query by removing complex joins or fields that may not be necessary. This can help isolate the issue.
  Update SAP Version: If you are using an older version of SAP S/4HANA, consider updating to a newer version that may have better support for the features you are trying to use.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Debugging: If you have access to the development environment, use debugging tools to trace the execution of the CDS view and identify where the error is occurring.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Core Data Services and the specific version of SAP S/4HANA you are using for detailed information on supported data types and structures.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.