How To Fix SADL_GW_DT_SB_UI020 - Identifier property '&1' of entity type '&2' must be a key field

SADL_GW_DT_SB_UI020 - Overview

• Message type: E = Error

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

• Message number: 020

• Message text: Identifier property '&1' of entity type '&2' must be a key field

Self-Explanatory Message

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SADL_GW_DT_SB_UI020 - Details

• The SAP error message SADL_GW_DT_SB_UI020 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 (SADL). Specifically, the error states that the identifier property (which is typically a unique identifier for an entity) must be defined as a key field in the entity type.
  
  Cause:
  
  Entity Definition Issue: The entity type defined in your OData service does not have the specified identifier property (&1) marked as a key field. In OData, key fields are essential for uniquely identifying instances of an entity.
  Model Configuration: The metadata of the OData service may not be correctly configured, leading to the identifier not being recognized as a key.
  Data Model Changes: If there have been recent changes to the data model or entity definitions, it is possible that the key field configuration was inadvertently altered.
  
  
  Solution:
  
  
  Check Entity Definition:
  
  Go to the relevant data model