How To Fix SWR112 - The request could not be sent using the HTTP method POST

SAP Error Message - Details

• Message type: E = Error

• Message class: SWR - Business Workflow: WAPI Interfaces

• Message number: 112

• Message text: The request could not be sent using the HTTP method POST

What causes this issue?

An attempt was made to send an XML document to the URL starting with '
&v2&' [...] with the function module <AB>HTTP_POST</>.

System Response

The function module gave the exception &v1&.

How to fix this error?

Analyze why the exception occurred. Usually the URL specified will be
the problem. Check it carefully.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWR112 - The request could not be sent using the HTTP method POST ?

  The SAP error message SWR112, which states "The request could not be sent using the HTTP method POST," typically occurs in the context of SAP's integration with web services or when using the SAP Workflow Runtime (SWR). This error indicates that there was an issue with sending a request to a web service endpoint using the HTTP POST method.
  Causes:
  
  Incorrect URL: The endpoint URL may be incorrect or not reachable.
  HTTP Method Not Supported: The web service may not support the POST method for the requested operation.
  Authentication Issues: There may be issues with authentication or authorization, preventing the request from being processed.
  Network Issues: There could be network connectivity problems between the SAP system and the web service.
  Payload Issues: The data being sent in the POST request may not be formatted correctly or may be missing required fields.
  Service Configuration: The web service may not be properly configured to accept requests from the SAP system.
  
  Solutions:
  
  Check the Endpoint URL: Verify that the URL you are trying to reach is correct and accessible. You can test it using tools like Postman or curl.
  Verify HTTP Method: Ensure that the web service you are trying to call supports the POST method for the operation you are attempting.
  Authentication: Check if the web service requires authentication (e.g., Basic Auth, OAuth) and ensure that the credentials are correct and properly configured in SAP.
  Network Connectivity: Test the network connection to the web service. You can use ping or traceroute commands to diagnose connectivity issues.
  Review Payload: Inspect the data being sent in the POST request. Ensure that it adheres to the expected format and includes all required fields.
  Service Configuration: Review the configuration of the web service to ensure it is set up to accept requests from your SAP system. This may include checking firewall settings, CORS policies, or service permissions.
  Check Logs: Look at the SAP application logs (transaction SLG1) for more detailed error messages that may provide additional context about the failure.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the SWR112 error.
  Documentation: Review the documentation for the specific web service you are trying to call to understand its requirements and limitations.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the SWR112 error.