How To Fix /IWPGW/PGW_SERVICE002 - &1 is a non-filterable attribute in entity &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWPGW/PGW_SERVICE -

• Message number: 002

• Message text: &1 is a non-filterable attribute in entity &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWPGW/PGW_SERVICE002 - &1 is a non-filterable attribute in entity &2 ?

  The SAP error message /IWPGW/PGW_SERVICE002 &1 is a non-filterable attribute in entity &2 typically occurs in the context of SAP Gateway services, particularly when working with OData services. This error indicates that you are trying to filter a property (attribute) in an OData query that is not defined as filterable in the service's metadata.
  Cause:
  
  Non-Filterable Attribute: The attribute you are trying to filter on is not marked as filterable in the OData service definition. This can happen if the attribute is not intended to be used for filtering or if it has not been configured correctly in the service.
  Service Metadata Configuration: The OData service metadata may not have been properly defined to include the attribute as filterable.
  Data Model Design: The underlying data model may not support filtering on that particular attribute due to its nature (e.g., calculated fields, certain types of relationships).
  
  Solution:
  
  Check Service Metadata: Review the OData service metadata (usually accessible via the service URL with $metadata appended) to confirm whether the attribute is marked as filterable. Look for the Filterable annotation in the metadata.
  Modify the Service Definition:
  
  If you have access to the service definition, you can modify it to make the attribute filterable. This typically involves adjusting the annotations in the service's data model.
  Use the SAP Gateway Service Builder (transaction code SEGW) to update the entity type and mark the attribute as filterable.
  
  
  Re-generate the Service: After making changes to the service definition, regenerate the service and activate it to ensure that the changes take effect.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to define filterable attributes in OData services.
  Testing: After making the necessary changes, test the OData service again to ensure that the filtering works as expected.
  
  Related Information:
  
  SAP Gateway: SAP Gateway is a technology that allows you to connect devices, environments, and platforms to SAP systems. It enables the creation of OData services.
  OData Protocol: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. Understanding OData query options (like $filter, $select, etc.) is essential for working with SAP Gateway services.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SEGW (Service Builder) and /IWFND/MAINT_SERVICE (Manage Services) for managing OData services in SAP.
  
  If you continue to face issues, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.