/IWFND/CM_COS034 - OIC list type '&1' does not support Query parameters

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_COS -

• Message number: 034

• Message text: OIC list type '&1' does not support Query parameters

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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AnswerBot

• What is the cause and solution for SAP error message /IWFND/CM_COS034 - OIC list type '&1' does not support Query parameters ?

  The SAP error message /IWFND/CM_COS034 indicates that the OData service you are trying to access does not support query parameters for the specified list type. This typically occurs when you are trying to use query options (like $filter, $select, $expand, etc.) on an entity set that is not designed to handle them.
  Cause:
  
  Unsupported List Type: The entity set you are querying is defined in such a way that it does not support query parameters. This could be due to the way the OData service is implemented or configured.
  Service Definition: The OData service might be using a specific list type that is not designed to handle dynamic queries.
  Model Configuration: The underlying data model or the service definition may not have been set up to allow for query options.
  
  Solution:
  
  Check Service Metadata: Review the service metadata (usually accessible via the $metadata endpoint) to understand the capabilities of the entity set you are querying. Look for the EntityType and EntitySet definitions to see if they support query options.
  Modify Query: If the entity set does not support query parameters, you may need to modify your query to remove any unsupported parameters.
  Update Service Implementation: If you have control over the OData service implementation, consider updating the service to support query parameters for the specific list type. This may involve modifying the service logic or the data model.
  Consult Documentation: Refer to the SAP documentation for the specific OData service you are using to understand its capabilities and limitations.
  Contact Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for assistance.
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how it handles query options can provide insights into why certain entity sets may not support them.
  SAP Gateway: If you are using SAP Gateway, familiarize yourself with the configuration and capabilities of your OData services.
  Error Handling: Implement error handling in your application to gracefully manage situations where unsupported query parameters are used.
  
  By following these steps, you should be able to diagnose and address the issue related to the /IWFND/CM_COS034 error message.