How To Fix CTS_CONFIG_MSG_CL164 - Cluster &1 cannot be validated; it belongs to a foreign domain (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CTS_CONFIG_MSG_CL - Message Class for Central CTS Configuration

• Message number: 164

• Message text: Cluster &1 cannot be validated; it belongs to a foreign domain (&2)

What causes this issue?

System cluster &v1& belongs to a different domain than the one to which
you are currently logged on.

System Response

You cannot validate the system cluster.

How to fix this error?

Start the Central CTS Configuration UI on the domain controller of
domain &v2& and validate the cluster there.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CTS_CONFIG_MSG_CL164 - Cluster &1 cannot be validated; it belongs to a foreign domain (&2) ?

  The SAP error message CTS_CONFIG_MSG_CL164 indicates that there is an issue with the transport domain configuration in the Change and Transport System (CTS). Specifically, the error states that a cluster (in this case, &1) cannot be validated because it belongs to a foreign domain (&2). This typically occurs when there is a mismatch in the transport domain configuration between different SAP systems.
  Cause:
  
  Transport Domain Mismatch: The cluster you are trying to validate is part of a different transport domain than the one currently configured in your SAP system.
  Incorrect Configuration: The transport domain configuration may not be set up correctly, leading to the system not recognizing the cluster as part of its own domain.
  System Landscape Changes: Changes in the system landscape, such as the addition of new systems or changes in transport routes, can lead to this error if not properly configured.
  
  Solution:
  
  
  Check Transport Domain Configuration:
  
  Use transaction STMS to check the transport domain configuration.
  Ensure that the cluster is correctly assigned to the appropriate transport domain.
  
  
  
  Verify Domain Controller:
  
  Ensure that the domain controller is correctly configured and that the systems are properly connected to the transport domain.
  You can check the domain controller settings in transaction STMS under the "Overview" section.
  
  
  
  Adjust Transport Routes:
  
  If the cluster is supposed to be part of the current domain, you may need to adjust the transport routes to include it.
  Ensure that the transport routes are correctly defined and that there are no inconsistencies.
  
  
  
  Reconfigure Transport Domain:
  
  If necessary, you may need to reconfigure the transport domain settings. This can involve using transaction STMS to reassign systems or clusters to the correct domain.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional guidance on transport domain configuration.
  
  
  
  System Restart:
  
  In some cases, a restart of the SAP system may help in resolving temporary inconsistencies.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  STMS: Transport Management System
  SE06: Transport Organizer Tools
  
  
  Documentation: Refer to SAP Help documentation for detailed information on configuring the Change and Transport System.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.