How To Fix T5159 - Wait mode ended with unknown reason code: Inform vendor

SAP Error Message - Details

• Message type: E = Error

• Message class: T5 - SAPphone: Messages for telephony

• Message number: 159

• Message text: Wait mode ended with unknown reason code: Inform vendor

What causes this issue?

CTI vendor returned a non-defined reason code.

System Response

The system cannot process the call correctly in the CIC.

How to fix this error?

Ask the vendor of your CTI product to correct the error.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message T5159 - Wait mode ended with unknown reason code: Inform vendor ?

  The SAP error message T5159, which states "Wait mode ended with unknown reason code: Inform vendor," typically indicates that a process or job in SAP has terminated unexpectedly, and the system is unable to determine the specific reason for the failure. This can occur in various contexts, such as during batch processing, job scheduling, or when executing certain transactions.
  Possible Causes:
  
  System Configuration Issues: There may be misconfigurations in the system settings or parameters that lead to unexpected behavior.
  Resource Limitations: Insufficient system resources (like memory, CPU, or disk space) can cause processes to fail.
  Software Bugs: There may be bugs in the SAP software or in custom code that lead to unexpected terminations.
  Database Issues: Problems with the underlying database, such as connectivity issues or corruption, can also lead to this error.
  Network Issues: If the job involves communication with external systems, network issues could cause failures.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) and the job logs (transaction SM37) for any additional error messages or warnings that could provide more context about the failure.
  Analyze Short Dumps: Use transaction ST22 to check for any short dumps that occurred around the same time as the error. This can provide insights into what went wrong.
  Review Configuration: Ensure that all relevant configurations are correct and that there are no missing parameters.
  Monitor System Resources: Check the system's resource usage to ensure that it is not running low on memory, CPU, or disk space.
  Update Software: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues.
  Contact SAP Support: If the issue persists and you cannot determine the cause, it may be necessary to contact SAP support for further assistance. Provide them with the error message, logs, and any other relevant information.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  Community Forums: Check SAP Community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  Documentation: Review SAP documentation for the specific module or process you are working with to ensure that you are following best practices.
  
  By following these steps, you should be able to diagnose and potentially resolve the issue related to the T5159 error message.