How To Fix WL049 - No RFC resources available for processing (waited &1 seconds)

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 049

• Message text: No RFC resources available for processing (waited &1 seconds)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL049 - No RFC resources available for processing (waited &1 seconds) ?

  The SAP error message WL049 "No RFC resources available for processing (waited &1 seconds)" indicates that the system is unable to allocate a Remote Function Call (RFC) resource for processing a request. This can occur due to various reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  
  Insufficient RFC Connections: The number of available RFC connections may be exhausted. This can happen if there are too many concurrent requests or if the maximum number of allowed connections is set too low.
  
  
  Long-Running Processes: If there are long-running processes that are holding onto RFC connections, it can lead to resource exhaustion.
  
  
  Configuration Issues: Incorrect configuration of the RFC settings in the SAP system can lead to this error.
  
  
  Network Issues: Network problems can also cause delays in processing requests, leading to the exhaustion of available resources.
  
  
  System Load: High system load or performance issues can lead to delays in processing requests, causing the RFC resources to be tied up longer than expected.
  
  
  Solutions:
  
  
  Increase RFC Connections:
  
  Check the current settings for the maximum number of RFC connections in the SAP system. You can do this by navigating to transaction RZ10 and checking the profile parameters related to RFC connections (e.g., rfc/max_connections).
  Increase the limit if necessary, based on the expected load.
  
  
  
  Monitor and Optimize Long-Running Processes:
  
  Use transaction SM66 or SM50 to monitor active processes and identify any long-running jobs that may be holding onto RFC connections.
  Optimize or terminate any unnecessary long-running processes.
  
  
  
  Check Configuration:
  
  Review the configuration settings for RFC in transaction SM59. Ensure that the settings are correct and that the connections are properly configured.
  
  
  
  Network Troubleshooting:
  
  Check for any network issues that may be affecting the communication between systems. This includes checking firewalls, network latency, and connectivity.
  
  
  
  System Performance:
  
  Analyze system performance using transaction ST03N to identify any bottlenecks or performance issues that may be affecting the processing of requests.
  
  
  
  Restart RFC Services:
  
  In some cases, restarting the RFC services or the SAP instance may help to clear up any resource locks or issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM50: Monitor work processes.
  SM66: Global work process overview.
  SM59: RFC destination configuration.
  RZ10: Profile parameter maintenance.
  ST03N: Workload analysis.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to RFC connections and performance.
  
  
  Documentation: Review SAP documentation for best practices on managing RFC connections and system performance.
  
  
  By following these steps, you should be able to diagnose and resolve the WL049 error in your SAP system.