How To Fix SWF_FLEX_CDS023 - Unsupported data type '&1' as key.

SWF_FLEX_CDS023 - Overview

• Message type: E = Error

• Message class: SWF_FLEX_CDS - CDS Message Class

• Message number: 023

• Message text: Unsupported data type '&1' as key.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_FLEX_CDS023 - Unsupported data type '&1' as key. ?

  The SAP error message SWF_FLEX_CDS023 indicates that there is an unsupported data type being used as a key in a Core Data Services (CDS) view or in a related context. This typically occurs when the data type of a field that is expected to be a key does not conform to the requirements set by the CDS framework.
  
  Cause:
  
  Unsupported Data Type: The error is triggered when a field defined as a key in a CDS view is of a data type that is not supported for key fields. Common unsupported types include complex types, certain character types, or any non-scalar types.
  Incorrect Definition: The key field may be incorrectly defined in the CDS view or the underlying database table.
  Incompatibility with Framework: The data type may not be compatible with the expected key types in the context of the application or service using the CDS view.
  
  
  Solution:
  
  
  Check Data Types: Review the data types of