How To Fix /IWPGW/TGW_TCM_MSG002 - POST request on URI &1 is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWPGW/TGW_TCM_MSG -

• Message number: 002

• Message text: POST request on URI &1 is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWPGW/TGW_TCM_MSG002 - POST request on URI &1 is not supported ?

  The SAP error message /IWPGW/TGW_TCM_MSG002 indicates that a POST request was made to a URI that is not supported by the SAP Gateway. This typically occurs when the client attempts to send data to a service endpoint that does not accept POST requests or when the endpoint is not correctly configured to handle the request.
  Causes:
  
  Incorrect URI: The URI being accessed may not be configured to handle POST requests. This could be due to a typo or an incorrect endpoint being used.
  Service Configuration: The OData service or the corresponding backend service may not be set up to accept POST requests for the specified resource.
  Authorization Issues: The user may not have the necessary permissions to perform a POST operation on the specified resource.
  Service Activation: The OData service might not be activated in the SAP Gateway or the backend system.
  Method Not Implemented: The backend implementation may not have the necessary logic to handle the POST request.
  
  Solutions:
  
  Check the URI: Verify that the URI you are using is correct and that it is intended to handle POST requests. Consult the service documentation or metadata to confirm the supported operations.
  Service Configuration: Ensure that the OData service is properly configured to handle POST requests. This may involve checking the service definition in the SAP Gateway.
  Authorization: Check the user roles and authorizations to ensure that the user has the necessary permissions to perform the POST operation.
  Activate the Service: If the service is not activated, you can activate it using transaction code /IWFND/MAINT_SERVICE in the SAP Gateway system.
  Backend Implementation: If you have access to the backend code, ensure that the logic for handling POST requests is implemented correctly. This may involve checking the relevant ABAP classes or methods.
  Check Service Metadata: Use the service's metadata endpoint (usually /$metadata) to review the entity sets and their supported operations.
  
  Related Information:
  
  Transaction Codes: 
  
  /IWFND/MAINT_SERVICE: To manage OData services in the SAP Gateway.
  /IWFND/GW_CLIENT: To test OData services and see the responses.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on handling this error.
  Logs and Traces: Review the SAP Gateway logs and traces for more detailed error messages that can provide insights into the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement the appropriate solution.