How To Fix SADL_GW_DT_SB_UI022 - Identifier property '&1' of entity type '&2' must not be mapped

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 022

• Message text: Identifier property '&1' of entity type '&2' must not be mapped

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_SB_UI022 - Identifier property '&1' of entity type '&2' must not be mapped ?

  The SAP error message SADL_GW_DT_SB_UI022 indicates that there is an issue with the mapping of an identifier property in the context of the SAP Gateway and the Service Data Layer (SDAL). Specifically, it states that the identifier property &1 of entity type &2 must not be mapped. This typically occurs when there is a misconfiguration in the data model or service definition.
  Cause:
  
  
  Identifier Property Mapping: The error usually arises when an identifier property (like a primary key) is incorrectly mapped in the service definition. In SAP Gateway, identifier properties should not be included in the mapping for certain operations, as they are automatically handled by the framework.
  
  
  Service Definition Issues: There may be inconsistencies in the service definition or the metadata that defines how the entity types and their properties are exposed.
  
  
  Model Configuration: The underlying data model may have been incorrectly configured, leading to the identifier being treated as a regular property instead of a unique identifier.
  
  
  Solution:
  
  
  Check the Mapping: Review the mapping of the entity type in the service definition. Ensure that the identifier property is not included in the mapping for the relevant operations (e.g., Create, Update).
  
  
  Adjust the Data Model: If the identifier property is incorrectly defined in the data model, adjust the model to ensure that it is recognized as an identifier. This may involve modifying the entity type definition in the underlying data source.
  
  
  Regenerate the Service: After making changes to the mapping or data model, regenerate the service and refresh the metadata. This can often resolve issues related to outdated or incorrect service definitions.
  
  
  Check for Annotations: Ensure that the appropriate annotations are applied to the identifier property in the metadata. This can help the framework understand how to treat the property correctly.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to the version of SAP you are using, as there may be version-specific considerations.
  
  
  Related Information:
  
  SAP Gateway: Understand how SAP Gateway works, especially in terms of OData services and how entity types are defined and managed.
  Service Data Layer (SDAL): Familiarize yourself with the concepts of the Service Data Layer, as it plays a crucial role in how data is accessed and manipulated in SAP applications.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP Gateway and OData services.