How To Fix SPXN020 - Response missing

SAP Error Message - Details

• Message type: E = Error

• Message class: SPXN - Proxy Generation

• Message number: 020

• Message text: Response missing

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SPXN020 - Response missing ?

  The SAP error message SPXN020, which states "Response missing," typically occurs in the context of SAP's integration with external systems or services, particularly when dealing with web services or remote function calls (RFC). This error indicates that the expected response from an external system or service was not received within a specified timeframe.
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the external service, leading to timeouts or dropped requests.
  Service Unavailability: The external service may be down or not responding due to maintenance or other issues.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external service can lead to communication failures.
  Timeout Settings: The timeout settings for the request may be too short, causing the system to give up waiting for a response.
  Data Issues: If the data being sent to the external service is incorrect or malformed, it may not process the request and thus not send a response.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP system and the external service. You can use tools like ping or traceroute to diagnose connectivity.
  Verify Service Status: Check if the external service is up and running. If it is down, you may need to wait until it is back online or contact the service provider.
  Review Configuration: Double-check the configuration settings in both the SAP system and the external service to ensure they are correct. This includes endpoint URLs, authentication credentials, and any required parameters.
  Increase Timeout Settings: If the response time is expected to be longer, consider increasing the timeout settings in the SAP system to allow more time for the response.
  Log and Analyze Data: Review the data being sent to the external service for any issues. Ensure that it meets the expected format and requirements of the service.
  Check SAP Logs: Look into the SAP application logs (transaction SLG1) for more detailed error messages or warnings that could provide additional context about the issue.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the documentation for the specific integration scenario you are working with, as it may contain important details about expected responses and error handling.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to engage with SAP support or the support team for the external service for further assistance.