How To Fix CNV_IUUC_REPL_UI018 - Source system used by another configuration

CNV_IUUC_REPL_UI018 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_REPL_UI - IUUC replication messages related to UI

• Message number: 018

• Message text: Source system used by another configuration

What causes this issue?

The source system is used by another configuration.
If multiple configurations use the same source system, this can
negatively impact performance. Note that if a configuration is using a
source system that runs on Sybase ASE or SAP MaxDB, then the source
system cannot be used by another configuration.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_IUUC_REPL_UI018 - Details

• The SAP error message CNV_IUUC_REPL_UI018 typically indicates that the source system you are trying to use for a specific configuration is already being utilized by another configuration. This error is often encountered in the context of data replication or migration scenarios, particularly when using SAP Landscape Transformation (SLT) or similar tools.
  
  Cause:
  
  Multiple Configurations: The source system is already configured for another data replication or migration task, which prevents it from being used for a new configuration.
  Configuration Overlap: There may be overlapping configurations that are trying to access the same source system, leading to conflicts.
  Incorrect Setup: The setup of the source system may not be correctly defined, or there may be a misunderstanding of the configurations in place.
  
  
  Solution:
  
  Check Existing Configurations: Review the existing configurations in the system to identify which ones are using the source system. You can do this by navigating to the relevant transaction codes or configuration screens in SAP.
  Modify