How To Fix RSQU101 - Deviation of &1 seconds between qRFC counter &2 and current time &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: RSQU - S-API after 4.0: Delta Queue, Real Time Update

• Message number: 101

• Message text: Deviation of &1 seconds between qRFC counter &2 and current time &3 &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSQU101 - Deviation of &1 seconds between qRFC counter &2 and current time &3 &4 ?

  The SAP error message RSQU101 indicates a deviation between the qRFC (queued Remote Function Call) counter and the current time. This typically occurs in the context of SAP's queuing mechanism, where the system is monitoring the time taken for queued function calls to be processed. The message specifies that there is a significant time difference (in seconds) between the qRFC counter and the current system time.
  Cause:
  
  System Clock Issues: The most common cause of this error is a discrepancy in the system clock settings. If the system time is not synchronized properly, it can lead to deviations in the qRFC counter.
  Long Processing Times: If the processing of queued function calls is taking longer than expected, it may also trigger this error.
  Network Latency: In distributed systems, network delays can cause timing issues, especially if the qRFC is being processed across different servers.
  Configuration Issues: Incorrect configuration of the qRFC settings or the underlying infrastructure can also lead to this error.
  
  Solution:
  
  Check System Time: Ensure that the system time on the SAP server is synchronized with a reliable time source (e.g., NTP server). You can use the transaction SM51 to check the time on all application servers.
  Adjust Time Settings: If there are discrepancies, adjust the time settings on the server or configure NTP to ensure consistent time across all servers.
  Monitor qRFC Processing: Use transaction SMQ1 (for outbound queues) and SMQ2 (for inbound queues) to monitor the status of qRFC queues. Check for any long-running or stuck processes that may be causing delays.
  Review Logs: Check the system logs (transaction SM21) for any related errors or warnings that might provide additional context for the issue.
  Performance Tuning: If the processing time is consistently long, consider performance tuning of the related function modules or the underlying database queries.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  Related Information:
  
  qRFC: This is a mechanism in SAP that allows for asynchronous communication between different systems or processes, ensuring that function calls are executed in the order they were received.
  Transaction Codes: Familiarize yourself with transaction codes like SMQ1, SMQ2, SM21, and SM51 for monitoring and troubleshooting qRFC issues.
  SAP Basis: Understanding the role of SAP Basis in managing system performance and configuration can be beneficial in resolving such issues.
  
  If the problem persists after following these steps, it may be necessary to consult with SAP support or your system administrator for further investigation.