How To Fix SWF_HTTP017 - Callback URL could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_HTTP - Web Services in the Workflow: Server Functions

• Message number: 017

• Message text: Callback URL could not be determined

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_HTTP017 - Callback URL could not be determined ?

  The SAP error message SWF_HTTP017: Callback URL could not be determined typically occurs in the context of SAP Workflow or when using the SAP Business Workflow with HTTP-based services. This error indicates that the system is unable to determine the appropriate callback URL for a workflow task that requires an HTTP callback.
  Causes:
  
  Missing Configuration: The system may not have the necessary configuration for the HTTP callback URL. This can happen if the workflow is not properly set up to handle HTTP requests.
  Incorrect Workflow Settings: The workflow task may not be configured correctly, leading to the inability to resolve the callback URL.
  Network Issues: There may be network-related issues preventing the system from accessing the required URL.
  Missing or Incorrect Parameters: The parameters required to construct the callback URL may be missing or incorrectly set in the workflow definition.
  System Settings: The system settings for the HTTP service may not be correctly configured, such as the HTTP destination or the service endpoint.
  
  Solutions:
  
  
  Check Workflow Configuration:
  
  Ensure that the workflow is correctly configured to use HTTP callbacks. This includes checking the workflow definition and ensuring that all necessary parameters are set.
  
  
  
  Define Callback URL:
  
  If the callback URL is not defined, you may need to explicitly set it in the workflow task or in the relevant configuration settings.
  
  
  
  Review HTTP Settings:
  
  Check the HTTP settings in the SAP system. This includes verifying the HTTP destination and ensuring that the service endpoint is reachable.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues preventing the SAP system from accessing the callback URL. This may involve checking firewall settings or network routes.
  
  
  
  Use Transaction SWFVISU:
  
  Use transaction SWFVISU to visualize the workflow and check for any inconsistencies or errors in the workflow definition.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation for specific details on configuring HTTP callbacks in workflows. This may provide insights into any additional settings that need to be configured.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the workflow to trace where the callback URL is being determined and identify any potential issues in the logic.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Workflow Logs: Review workflow logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the cause of the SWF_HTTP017 error and implement a solution to resolve it.