How To Fix /IWFND/CM_MGW393 - Context token requests also need "sap-client" as URL parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW -

• Message number: 393

• Message text: Context token requests also need "sap-client" as URL parameter

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW393 - Context token requests also need "sap-client" as URL parameter ?

  The SAP error message /IWFND/CM_MGW393 Context token requests also need "sap-client" as URL parameter typically occurs in the context of OData services when the required sap-client parameter is missing from the request URL. This error is related to the SAP Gateway and the way it handles client-specific requests.
  Cause:
  
  Missing sap-client Parameter: The error indicates that the request for a context token (which is often used for authentication and session management) does not include the sap-client parameter. This parameter is essential for identifying the client in multi-client environments.
  Incorrect URL Format: The URL being used to access the OData service may not be formatted correctly, leading to the omission of the required parameters.
  Configuration Issues: There may be configuration issues in the SAP Gateway or the OData service that prevent the proper handling of requests.
  
  Solution:
  
  
  Add sap-client Parameter: Ensure that the request URL includes the sap-client parameter. The URL should look something like this:
  /sap/opu/odata/sap/YOUR_SERVICE_NAME/EntitySet?$format=json&sap-client=100
  Replace 100 with the appropriate client number you are working with.
  
  
  Check Service Configuration: Verify the configuration of the OData service in the SAP Gateway. Ensure that the service is properly registered and activated.
  
  
  Review Client Settings: If you are using a front-end application (like SAP Fiori), check the settings to ensure that the sap-client parameter is being passed correctly in the requests.
  
  
  Debugging: If the issue persists, consider using tools like SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test the service and see if the sap-client parameter is being sent correctly.
  
  
  Consult Documentation: Refer to the SAP documentation for OData services and the SAP Gateway for more detailed information on required parameters and service configuration.
  
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is a technology that allows you to connect devices, environments, and applications to SAP systems. It enables the creation of OData services.
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. In SAP, OData services are used to expose business data and logic.
  Multi-Client Environment: In SAP systems, multiple clients can exist within the same system instance. The sap-client parameter is crucial for distinguishing between these clients.
  
  By ensuring that the sap-client parameter is included in your requests and verifying the configuration of your OData services, you should be able to resolve the error message /IWFND/CM_MGW393.