How To Fix /IWFND/CM_LOGGING444 - Consumer read-method was executed, but no ID was provided

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_LOGGING -

• Message number: 444

• Message text: Consumer read-method was executed, but no ID was provided

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_LOGGING444 - Consumer read-method was executed, but no ID was provided ?

  The SAP error message /IWFND/CM_LOGGING444 indicates that a consumer read method was executed without providing an ID. This typically occurs in the context of OData services in SAP Gateway, where a request to read a specific entity requires an identifier (ID) to fetch the corresponding data.
  Cause:
  
  
  Missing ID in the Request: The most common cause of this error is that the request sent to the OData service does not include the required ID parameter. For example, if you are trying to read a specific record from an entity set, you need to specify the ID of that record in the URL.
  
  
  Incorrect URL Format: The URL format used to access the OData service might be incorrect, leading to the omission of the ID.
  
  
  Client-Side Issues: If the request is being generated by a client application (like SAP Fiori, Postman, etc.), there might be an issue in how the request is constructed, leading to the ID not being included.
  
  
  Solution:
  
  
  Check the Request URL: Ensure that the request URL includes the ID of the entity you are trying to access. The URL should typically look like this:
  /sap/opu/odata/sap/<service_name>/<entity_set>(<ID>)
  For example:
  /sap/opu/odata/sap/ZMY_SERVICE/MyEntitySet('12345')
  
  
  Review Client Code: If you are using a custom client application, review the code that constructs the OData request to ensure that it correctly includes the ID.
  
  
  Test with Tools: Use tools like Postman or the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to manually test the OData service and verify that the ID is being sent correctly.
  
  
  Check Service Implementation: If you are the developer of the OData service, ensure that the service implementation correctly handles requests and that the entity set is defined properly in the service metadata.
  
  
  Debugging: If the issue persists, consider debugging the OData service to trace the request and see where the ID is being lost or not passed.
  
  
  Related Information:
  
  OData Services: Understanding how OData services work in SAP Gateway is crucial. Familiarize yourself with the concepts of entity sets, keys, and how to construct valid OData URLs.
  SAP Gateway Client: Use the SAP Gateway Client to test and debug OData services directly within the SAP system.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on handling OData requests.
  
  By following these steps, you should be able to resolve the error and successfully execute the read method with the required ID.