How To Fix FDT_CP_MSG221 - POST request on URI &1 is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CP_MSG -

• Message number: 221

• 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 FDT_CP_MSG221 - POST request on URI &1 is not supported ?

  The SAP error message FDT_CP_MSG221 indicates that a POST request on a specific URI is not supported. This error typically arises in the context of SAP Fiori or SAP Gateway services when a client attempts to perform an operation that is not allowed by the backend service.
  Cause:
  
  Unsupported HTTP Method: The URI you are trying to access does not support the POST method. This could be due to the service being designed only for GET requests or other methods like PUT or DELETE.
  Service Configuration: The OData service or the specific entity set may not be configured to handle POST requests. This could be due to missing or incorrect annotations in the service definition.
  Authorization Issues: The user may not have the necessary permissions to perform a POST operation on the specified URI.
  Incorrect URI: The URI being accessed may be incorrect or not properly defined in the service metadata.
  
  Solution:
  
  Check Service Metadata: Use the service's metadata (usually accessible via the $metadata endpoint) to verify if the entity set supports POST operations. Look for the Insert operation in the entity set definition.
  Review Service Implementation: If you have access to the backend implementation, check the service logic to ensure that it is designed to handle POST requests for the specified URI.
  Check Authorization: Ensure that the user has the necessary roles and authorizations to perform the POST operation. You may need to consult with your SAP security team.
  Correct URI: Double-check the URI being used in the POST request to ensure it is correct and corresponds to an entity set that supports POST.
  Consult Documentation: Refer to the SAP documentation for the specific OData service you are using to understand its capabilities and limitations.
  
  Related Information:
  
  OData Services: Understanding the OData protocol and how it works with SAP services can help in troubleshooting issues related to HTTP methods.
  SAP Gateway: Familiarize yourself with SAP Gateway concepts, as it plays a crucial role in exposing OData services.
  SAP Notes: Check for any relevant SAP Notes or Knowledge Base Articles that may address this specific error or provide additional context.
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team for further assistance.