How To Fix /SDF/SMON028 - System &1 is already included via destination &2.

/SDF/SMON028 - Overview

• Message type: E = Error

• Message class: /SDF/SMON -

• Message number: 028

• Message text: System &1 is already included via destination &2.

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 /SDF/SMON028 - System &1 is already included via destination &2. ?

  The SAP error message /SDF/SMON028 System &1 is already included via destination &2 typically occurs in the context of SAP Landscape Management (LaMa) or when managing system connections in SAP Solution Manager. This error indicates that the system you are trying to include in a certain operation (like a monitoring or management task) is already included through another destination.
  
  Cause:
  
  Duplicate Inclusion: The system you are trying to add is already registered or included in the system landscape via a different destination.
  
  Configuration Issues: There may be misconfigurations in the system landscape or destination settings that lead to this error.
  System Management Conflicts: If multiple users or processes are trying to manage the same system simultaneously, it can lead to conflicts.
  
  
  Solution:
  
  Check Existing Destinations: Verify the existing destinations in your SAP system. You can do this by navigating to the transaction code SM59 (RFC Destinations) and checking if the system is already listed under a