How To Fix S7231 - Time = 0 serious error in operating system clock

SAP Error Message - Details

• Message type: E = Error

• Message class: S7 - Runtime Analysis: Message Texts

• Message number: 231

• Message text: Time = 0 serious error in operating system clock

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 S7231 - Time = 0 serious error in operating system clock ?

  The SAP error message S7231, which indicates "Time = 0 serious error in operating system clock," typically arises when there is a discrepancy or issue with the system clock settings on the server where the SAP system is running. This can lead to various problems, including issues with time-sensitive operations, scheduling, and data consistency.
  Causes:
  
  Incorrect System Time: The operating system clock may be set to an incorrect time or date, which can happen due to manual changes, time zone misconfigurations, or hardware issues.
  NTP Configuration Issues: If the server is configured to synchronize its time with a Network Time Protocol (NTP) server, any issues with the NTP configuration or the NTP server itself can lead to time discrepancies.
  Hardware Clock Issues: Problems with the hardware clock (RTC - Real-Time Clock) on the server can also cause the system time to be incorrect.
  Virtual Machine Time Drift: If the SAP system is running on a virtual machine, time drift can occur if the VM is not properly synchronized with the host machine.
  
  Solutions:
  
  
  Check and Correct System Time:
  
  Verify the current system time and date on the server using the command line (e.g., date command in Linux or time command in Windows).
  If the time is incorrect, manually set it to the correct time and date.
  
  
  
  Configure NTP:
  
  Ensure that the NTP service is installed and running on the server.
  Check the NTP configuration file (e.g., /etc/ntp.conf on Linux) to ensure it points to valid NTP servers.
  Restart the NTP service to synchronize the time.
  
  
  
  Check Hardware Clock:
  
  On Linux, you can check the hardware clock using the command hwclock.
  If the hardware clock is incorrect, you can set it using hwclock --set --date="YYYY-MM-DD HH:MM:SS" and then synchronize it with the system clock using hwclock --systohc.
  
  
  
  Virtual Machine Synchronization:
  
  If running on a VM, ensure that the VM tools (like VMware Tools or Hyper-V Integration Services) are installed and configured to synchronize time with the host.
  Check the VM settings to ensure that time synchronization is enabled.
  
  
  
  Monitor and Log:
  
  After making changes, monitor the system for any further time-related errors.
  Check system logs for any additional information that might indicate underlying issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to time synchronization and the S7231 error for any specific recommendations or patches.
  Operating System Documentation: Refer to the documentation for your specific operating system for detailed instructions on managing system time and NTP configuration.
  SAP Basis Team: If the issue persists, it may be beneficial to involve your SAP Basis team or system administrator for further investigation and resolution.
  
  By addressing the underlying cause of the time discrepancy, you should be able to resolve the S7231 error and restore normal operation to your SAP system.