How To Fix CNV_IUUC_REPL_TS018 - &1 data load jobs are running, but no master job is running

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPL_TS - Messages for troubleshooting functions

• Message number: 018

• Message text: &1 data load jobs are running, but no master job is running

What causes this issue?

The master monitoring job is not running (but the configuration is
active, and there are &V1& data load jobs running).

System Response

Even though the replication may still be in process, many critical
activities are not being handled correctly.

How to fix this error?

Stop replicatation in the <DS:TRAN.LTR>Configuration and Monitoring
Dashboard</>. If the problem persists, contact your system
administrator.

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 CNV_IUUC_REPL_TS018 - &1 data load jobs are running, but no master job is running ?

  The SAP error message CNV_IUUC_REPL_TS018 indicates that there are data load jobs currently running, but there is no master job running to manage or coordinate these jobs. This situation typically arises in the context of SAP Landscape Transformation (SLT) replication scenarios, where data is being replicated from a source system to a target system.
  Cause:
  
  Master Job Not Started: The master job responsible for coordinating the data load jobs may not have been started or may have failed.
  Job Dependencies: There may be dependencies between jobs that are not being met, causing the master job to not initiate.
  Configuration Issues: There could be configuration issues in the SLT setup that prevent the master job from running.
  Resource Constraints: System resource constraints (like memory or CPU) may prevent the master job from starting.
  Job Failures: Previous jobs may have failed, leading to a situation where the master job cannot start.
  
  Solution:
  
  Check Job Status: Use transaction codes like SM37 to check the status of the jobs. Look for any failed jobs that might be preventing the master job from starting.
  Start Master Job: If the master job is not running, you may need to manually start it. This can typically be done through the SLT configuration or monitoring tools.
  Review Logs: Check the logs for any error messages or warnings that could provide more context on why the master job is not running.
  Configuration Review: Review the SLT configuration settings to ensure that everything is set up correctly. This includes checking the connection settings, replication settings, and any relevant parameters.
  Resource Monitoring: Monitor system resources to ensure that there are enough resources available for the jobs to run. If necessary, optimize the system or schedule jobs during off-peak hours.
  Restart SLT Replication: In some cases, restarting the SLT replication setup may resolve the issue. This can be done through the SLT configuration interface.
  Consult Documentation: Refer to SAP documentation or notes related to SLT and the specific error message for additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT, SM37, SLG1, and ST22 for monitoring and troubleshooting.
  SAP Notes: Check for any SAP Notes related to the error message CNV_IUUC_REPL_TS018 for specific patches or updates that may address the issue.
  SLT Documentation: Review the official SAP documentation on SLT for best practices and troubleshooting guidelines.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.