How To Fix CNV_CDMC_CA263 - Enter exactly one system with role 'S'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CA - CDMC Clearing Analysis

• Message number: 263

• 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_CA263 - Enter exactly one system with role 'S' ?

  The SAP error message CNV_CDMC_CA263 indicates that the system expects exactly one system to be defined with the role 'S' (which typically stands for "Source" system) in the context of a data conversion or migration process. This error usually arises during the execution of a conversion program or when setting up a system landscape for data migration.
  Cause:
  
  Multiple Source Systems Defined: There may be more than one system defined with the role 'S' in the configuration, which violates the requirement of having exactly one source system.
  No Source System Defined: Conversely, if no system is defined with the role 'S', the process cannot proceed.
  Incorrect Configuration: The configuration settings for the system landscape may not be set up correctly, leading to ambiguity in identifying the source system.
  
  Solution:
  
  
  Check System Configuration:
  
  Go to the relevant transaction (often CNV_XXX related transactions) where the system landscape is defined.
  Verify the list of systems and their assigned roles.
  Ensure that there is exactly one system with the role 'S'.
  
  
  
  Adjust System Roles:
  
  If there are multiple systems with the role 'S', you will need to either remove or change the role of the additional systems to ensure only one remains.
  If no system is defined with the role 'S', you will need to add a system and assign it the correct role.
  
  
  
  Consult Documentation:
  
  Refer to the specific SAP documentation or guides related to the data conversion or migration process you are working on. This can provide insights into the expected configuration.
  
  
  
  Check for Transport Issues:
  
  If the configuration was recently transported from another system, ensure that the transport was successful and that all necessary objects were included.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is part of a larger migration project.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CNV_XXX for data conversion or migration tasks.
  SAP Notes: Search for SAP Notes related to the error message or the specific conversion program you are using. These notes may provide additional troubleshooting steps or patches.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the CNV_CDMC_CA263 error and proceed with your data migration or conversion tasks.