How To Fix BUAVC014 - RFC task &1 restarted in serial mode

SAP Error Message - Details

• Message type: E = Error

• Message class: BUAVC - Generic message class AVC

• Message number: 014

• Message text: RFC task &1 restarted in serial mode

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 BUAVC014 - RFC task &1 restarted in serial mode ?

  The SAP error message BUAVC014 indicates that an RFC (Remote Function Call) task has been restarted in serial mode. This typically occurs when there are issues with the parallel processing of tasks in the background, leading the system to revert to a serial execution mode to ensure that the tasks can still be completed.
  Causes:
  
  Resource Limitations: The system may be running low on resources (CPU, memory, etc.), causing it to switch to serial processing.
  Configuration Issues: The settings for parallel processing may not be configured correctly, leading to failures in executing tasks in parallel.
  Lock Contention: If multiple tasks are trying to access the same resource or data simultaneously, it can lead to lock contention, forcing the system to process tasks serially.
  Network Issues: Problems with network connectivity or performance can also lead to failures in parallel processing.
  System Load: High system load or performance issues can trigger the system to revert to serial processing to maintain stability.
  
  Solutions:
  
  Check System Resources: Monitor the system's CPU and memory usage. If resources are constrained, consider optimizing the workload or upgrading hardware.
  Review Configuration: Ensure that the configuration for parallel processing is set correctly in the SAP system. This includes checking the settings in transaction RZ10 for profile parameters related to parallel processing.
  Analyze Lock Contention: Use transaction SM12 to check for locks that may be causing contention. If locks are found, investigate the processes holding them and resolve any issues.
  Network Performance: Check the network performance and connectivity between the systems involved in the RFC calls. Ensure that there are no bottlenecks or issues affecting communication.
  System Monitoring: Use transaction ST22 to check for dumps and SM21 for system logs to identify any underlying issues that may be causing the problem.
  Adjust Background Job Settings: If the issue is related to background jobs, consider adjusting the job settings to allow for more parallel processing or to manage the load more effectively.
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM37: Monitor background jobs.
  SM12: Display and manage locks.
  ST22: Analyze dumps.
  SM21: View system logs.
  RZ10: Maintain profile parameters.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps. You can search for notes in the SAP Support Portal.
  
  
  Documentation: Review SAP documentation related to background processing and RFC configuration for best practices and guidelines.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.