How To Fix /IWPGW/PGW_SERVICE202 - Attribute &1 does not exist in the context service meta model

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWPGW/PGW_SERVICE -

• Message number: 202

• Message text: Attribute &1 does not exist in the context service meta model

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWPGW/PGW_SERVICE202 - Attribute &1 does not exist in the context service meta model ?

  The SAP error message /IWPGW/PGW_SERVICE202 Attribute &1 does not exist in the context service meta model typically occurs in the context of SAP Gateway services, particularly when there is an issue with the metadata of the OData service being used. This error indicates that the specified attribute (represented by &1) is not recognized in the service's metadata, which can happen for several reasons.
  Causes:
  
  
  Missing Attribute in Metadata: The attribute you are trying to access may not be defined in the OData service's metadata. This could be due to a misconfiguration or an oversight during the service definition.
  
  
  Changes in Data Model: If the underlying data model has changed (e.g., fields were added or removed) and the OData service was not updated accordingly, this error can occur.
  
  
  Service Activation Issues: The OData service may not be properly activated or may not have been regenerated after changes were made to the underlying data model.
  
  
  Incorrect Service URL: If the service URL is incorrect or points to a different service that does not contain the specified attribute, this error can occur.
  
  
  Caching Issues: Sometimes, caching issues can lead to the service not reflecting the latest changes in the metadata.
  
  
  Solutions:
  
  
  Check Metadata: Use the /IWFND/MAINT_SERVICE transaction to check the metadata of the OData service. Ensure that the attribute in question is defined in the service.
  
  
  Regenerate Service: If there have been changes to the underlying data model, regenerate the OData service using the transaction /IWFND/MAINT_SERVICE or the relevant transaction for your service.
  
  
  Activate Service: Ensure that the OData service is activated. You can do this in the same transaction mentioned above.
  
  
  Clear Cache: Clear the cache for the OData service. You can do this by using the transaction /IWFND/CACHE to clear the cache for the service.
  
  
  Check Service URL: Verify that the service URL you are using is correct and points to the intended OData service.
  
  
  Debugging: If the issue persists, consider debugging the service to trace where the error is occurring. This can provide insights into why the attribute is not being recognized.
  
  
  Related Information:
  
  
  OData Services: Understanding how OData services work in SAP Gateway is crucial. Familiarize yourself with the concepts of service registration, activation, and metadata.
  
  
  SAP Gateway Foundation: Review the documentation related to SAP Gateway and OData services to understand best practices for service development and maintenance.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific error message or the OData service you are working with.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWPGW/PGW_SERVICE202 error message.