How To Fix SADL_GW_DT_SB_UI023 - Property '&1' of entity type '&2' must not be a key field

SADL_GW_DT_SB_UI023 - Overview

• Message type: E = Error

• Message class: SADL_GW_DT_SB_UI - Gateway Service Builder UI Integration for SADL

• Message number: 023

• Message text: Property '&1' of entity type '&2' must not be a key field

Self-Explanatory Message

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SADL_GW_DT_SB_UI023 - Details

• The SAP error message SADL_GW_DT_SB_UI023 indicates that there is an issue with the definition of an entity type in the context of the SAP Gateway and the Service Data Layer (SDAL). Specifically, the error states that a property (field) that is being defined as a key field for an entity type is not allowed to be a key field based on the underlying data model or the OData service definition.
  
  Cause:
  
  Incorrect Key Field Definition: The property specified in the error message is being defined as a key field in the entity type, but it does not meet the criteria for being a key field. In OData, key fields are typically unique identifiers for an entity.
  Model 
  Configuration Issues: There may be a mismatch between the data model and the OData service definition, where a non-unique or non-identifiable field is incorrectly marked as a key.
  Data Model Constraints: The underlying data model may have