How To Fix CNV_IUUC_REPLICATION390 - There is already a listener registered for configuration &1

CNV_IUUC_REPLICATION390 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 390

• Message text: There is already a listener registered for configuration &1

Self-Explanatory Message

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CNV_IUUC_REPLICATION390 - Details

• The SAP error message CNV_IUUC_REPLICATION390 indicates that there is already a listener registered for a specific configuration in the SAP system. This error typically occurs in the context of SAP Landscape Transformation (SLT) replication setups, where multiple listeners may be trying to register for the same configuration.
  
  Cause:
  
  Duplicate Listener Registration: The most common cause of this error is that a listener for the specified configuration is already active or has been registered previously. This can happen if:
  The SLT system was restarted, and the listener was not properly deregistered.
  There are multiple instances of the SLT replication setup trying to register for the same configuration.
  A configuration was not properly cleaned up after a previous replication job was stopped or failed.
  
  
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Active Listeners:
  
  Use transaction code SLT in the SAP GUI to check the status of the existing listeners.
  Navigate to the relevant configuration and see if a