How To Fix P99B081 - Communication Failure

SAP Error Message - Details

• Message type: E = Error

• Message class: P99B - Payroll Versions Basis

• Message number: 081

• Message text: Communication Failure

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message P99B081 - Communication Failure ?

  The SAP error message P99B081, which indicates a "Communication Failure," typically arises in scenarios where there is a disruption in the communication between the SAP system and external systems or services. This can occur in various contexts, such as during data exchange with external applications, during remote function calls (RFC), or when accessing web services.
  Causes of P99B081 Communication Failure
  
  
  Network Issues: Problems with the network connection, such as downtime, latency, or misconfigured network settings, can lead to communication failures.
  
  
  Configuration Errors: Incorrect settings in the SAP system or the external system (like RFC destinations, logical systems, or communication parameters) can cause failures.
  
  
  Service Availability: The external service or system may be down or not reachable due to maintenance or other issues.
  
  
  Firewall or Security Settings: Firewalls or security settings may block the communication between the SAP system and the external system.
  
  
  Protocol Mismatch: If there is a mismatch in the communication protocols being used (e.g., HTTP vs. HTTPS), it can lead to failures.
  
  
  Timeouts: If the response time from the external system exceeds the configured timeout settings, it may result in a communication failure.
  
  
  Solutions to P99B081 Communication Failure
  
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the external system is stable and functioning properly. Use tools like ping or traceroute to diagnose connectivity issues.
  
  
  Review Configuration Settings: Verify the configuration of RFC destinations, logical systems, and any relevant communication parameters in the SAP system. Ensure that they are correctly set up.
  
  
  Monitor External Services: Check the status of the external service or system to ensure it is operational. If it is down, coordinate with the relevant teams to resolve the issue.
  
  
  Firewall and Security Settings: Review firewall rules and security settings to ensure that they allow communication between the SAP system and the external system.
  
  
  Adjust Timeout Settings: If timeouts are causing the issue, consider increasing the timeout settings in the SAP system or the external service.
  
  
  Check Logs: Review the SAP application logs (transaction SLG1) and system logs (transaction SM21) for more detailed error messages that can provide additional context about the failure.
  
  
  Test Communication: Use transaction codes like SM59 to test RFC connections and ensure that they are working as expected.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to the specific scenario in which the error occurs for additional troubleshooting steps.
  
  
  Related Information
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the P99B081 error.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  System Monitoring Tools: Utilize SAP monitoring tools to keep track of system performance and communication status.
  
  If the issue persists after following these steps, it may be necessary to involve SAP support for further assistance.