How To Fix XT020 - Include systems in the domain from the controller system only

XT020 - Overview

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 020

• Message text: Include systems in the domain from the controller system only

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 XT020 - Include systems in the domain from the controller system only ?

  The SAP error message XT020, which states "Include systems in the domain from the controller system only," typically occurs in the context of system landscape management, particularly when dealing with SAP's system landscape directory (SLD) or when configuring system connections in a distributed environment.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  Incorrect Configuration: The system is trying to include or manage systems in a domain that are not properly configured or are being included from a non-controller system.
  Domain Management Issues: The system may not be recognized as the controller for the domain, leading to restrictions on including other systems.
  Authorization Issues: The user or system may not have the necessary authorizations to perform the action of including systems in the domain.
  Network Issues: There may be connectivity issues between the systems that are supposed to be included in the domain.
  
  
  Solution:
  To resolve the XT020 error, you can follow these steps:
  
  
  Check Configuration:
  
  Ensure