How To Fix SADL_GW_DT_SB_UI013 - ABAP field &1 is not unique and used for properties &2 and &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 013

• Message text: ABAP field &1 is not unique and used for properties &2 and &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_SB_UI013 - ABAP field &1 is not unique and used for properties &2 and &3 ?

  The SAP error message SADL_GW_DT_SB_UI013 indicates that there is a problem with the uniqueness of an ABAP field in the context of a Data Model used in the SAP Gateway. Specifically, the error message states that the ABAP field &1 is not unique and is being used for properties &2 and &3. This typically occurs when two or more properties in a data model are mapped to the same underlying ABAP field, which can lead to ambiguity in data retrieval and representation.
  Cause
  The primary cause of this error is the mapping of multiple properties in a data model to the same ABAP field. This can happen due to:
  
  Incorrect Data Model Design: The data model may have been designed in such a way that two or more properties are unintentionally mapped to the same field.
  Changes in Data Model: If the data model was modified (e.g., properties added or removed) without properly updating the mappings, it can lead to this issue.
  Inconsistent Metadata: The metadata definitions for the properties may not be consistent with the underlying data structure.
  
  Solution
  To resolve this error, you can follow these steps:
  
  
  Review the Data Model: Check the data model definition in the SAP Gateway Service Builder (transaction code SEGW). Look for the properties that are causing the conflict and identify the ABAP field they are mapped to.
  
  
  Ensure Uniqueness: Make sure that each property in the data model is mapped to a unique ABAP field. If two properties are intended to represent different data, they should not share the same underlying field.
  
  
  Modify Mappings: If necessary, modify the mappings in the service definition to ensure that each property points to a distinct ABAP field. This may involve creating new fields in the underlying data structure or adjusting the existing mappings.
  
  
  Regenerate the Service: After making changes to the data model, regenerate the service to ensure that the changes take effect. This can be done in the Service Builder by selecting the service and choosing the "Generate" option.
  
  
  Test the Service: After regeneration, test the service to ensure that the error is resolved and that the properties are functioning as expected.
  
  
  Related Information
  
  Transaction Codes: Use transaction codes like SEGW (Service Builder) to manage your OData services and data models.
  Documentation: Refer to SAP documentation on OData services and the SAP Gateway for best practices in data model design.
  Debugging: If the issue persists, consider using debugging tools to trace the data flow and identify where the mappings may be going wrong.
  
  By following these steps, you should be able to resolve the SADL_GW_DT_SB_UI013 error and ensure that your data model is correctly configured.