How To Fix CNV_CDMC_CTS000 - Enter exactly one system with role 'S'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CTS - CDMC Change and Transport System Analysis

• Message number: 000

• Message text: Enter exactly one system with role 'S'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_CTS000 - Enter exactly one system with role 'S' ?

  The SAP error message CNV_CDMC_CTS000 typically occurs during the execution of a conversion or migration process, particularly when using the SAP Conversion Tools (like the SAP S/4HANA Migration Cockpit). This error indicates that the system expects exactly one system to be defined with the role 'S' (which usually stands for "Source" system) in the configuration.
  Cause:
  The error is caused by one of the following scenarios:
  
  Multiple Source Systems Defined: More than one system has been defined with the role 'S' in the configuration.
  No Source System Defined: There is no system defined with the role 'S'.
  Incorrect Configuration: The configuration might not be set up correctly, leading to ambiguity in identifying the source system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check System Configuration:
  
  Go to the relevant transaction or configuration area where the systems are defined (e.g., transaction CNV_CDMC).
  Verify the list of systems and their assigned roles.
  
  
  
  Ensure Exactly One Source System:
  
  If there are multiple systems with the role 'S', you need to either remove the extra entries or change their roles to something other than 'S'.
  If there is no system with the role 'S', you need to add a system and assign it the role 'S'.
  
  
  
  Save Changes:
  
  After making the necessary adjustments, save the configuration.
  
  
  
  Re-run the Process:
  
  Once the configuration is corrected, re-run the migration or conversion process to see if the error persists.
  
  
  
  Related Information:
  
  Documentation: Refer to the official SAP documentation for the specific conversion or migration tool you are using. This can provide additional context and troubleshooting steps.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Community Forums: Consider searching or posting in SAP community forums or SAP support channels for insights from other users who may have encountered the same issue.
  
  By ensuring that your system configuration meets the requirements of having exactly one source system defined, you should be able to resolve the CNV_CDMC_CTS000 error.