How To Fix CTS_CONFIG_MSG_CL166 - TMS parameter &1 is not displayed; system &2 is not assigned to a cluster

CTS_CONFIG_MSG_CL166 - Overview

• Message type: E = Error

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

• Message number: 166

• Message text: TMS parameter &1 is not displayed; system &2 is not assigned to a cluster

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CTS_CONFIG_MSG_CL166 - TMS parameter &1 is not displayed; system &2 is not assigned to a cluster ?

  The SAP error message CTS_CONFIG_MSG_CL166 indicates that there is an issue with the Transport Management System (TMS) configuration, specifically related to the assignment of a system to a transport cluster. This error typically arises when a system is not properly assigned to a transport domain or cluster, which is necessary for managing transports between different SAP systems.
  
  Cause:
  
  System Not Assigned to a Cluster: The system in question is not assigned to any transport cluster, which is required for transport management.
  TMS 
  Configuration Issues: There may be issues in the TMS configuration, such as missing or incorrect entries in the transport directory or configuration files.
  Transport Domain Configuration: The transport domain may not be set up correctly, or the system may not be included in the transport domain.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check TMS Configuration:
  
  Go to transaction STMS.
  Click on the Overview and then select Systems.
  Verify if the system is listed and