How To Fix /FLDQ/DQAAS_ERR035 - HTTP client receive http_invalid_state error.

SAP Error Message - Details

• Message type: E = Error

• Message class: /FLDQ/DQAAS_ERR -

• Message number: 035

• Message text: HTTP client receive http_invalid_state error.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /FLDQ/DQAAS_ERR035 - HTTP client receive http_invalid_state error. ?

  The SAP error message /FLDQ/DQAAS_ERR035 HTTP client receive http_invalid_state typically indicates an issue with the HTTP client state during a request-response cycle in an SAP system. This error can occur in various scenarios, particularly when dealing with HTTP communications, such as when using SAP Gateway, OData services, or other web services.
  Causes:
  
  Session Timeout: The HTTP session may have timed out, leading to an invalid state when trying to process a request.
  Network Issues: Intermittent network connectivity problems can cause the HTTP client to lose its state.
  Incorrect Configuration: Misconfiguration in the HTTP client settings or the backend service can lead to state issues.
  Concurrency Issues: Multiple simultaneous requests may lead to conflicts in the HTTP client state.
  Service Unavailability: The backend service might be down or not reachable, causing the client to enter an invalid state.
  
  Solutions:
  
  Check Session Management: Ensure that the session is active and has not timed out. If it has, re-establish the session.
  Network Stability: Verify the network connection between the SAP system and the target service. Ensure that there are no firewalls or proxies blocking the communication.
  Configuration Review: Review the configuration settings for the HTTP client and the backend service. Ensure that all parameters are correctly set.
  Error Handling: Implement proper error handling in your application to manage state transitions and retries in case of failures.
  Service Availability: Check the availability of the backend service. If it is down, wait for it to come back online or troubleshoot the service.
  Logs and Traces: Analyze the logs and traces in the SAP system to get more details about the error. This can provide insights into what went wrong.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches and updates.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Documentation: Review the official SAP documentation for the specific components you are using (e.g., SAP Gateway, OData services) for any known issues or best practices.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and error messages for better diagnosis.