How To Fix PU657 - Unknown system &1 from domain &2 with client &3

PU657 - Overview

• Message type: E = Error

• Message class: PU - Upgrade and Transport Log Messages

• Message number: 657

• Message text: Unknown system &1 from domain &2 with client &3

What causes this issue?

The system &V1& from the domain &V2& with the client &V3& is unknown.

System Response

The action was terminated.

How to fix this error?

Contact the system administrator.

Procedure for System Administrators

The system was checked using the implementations of the enhancement spot
CTS_BADI_FOREIGN_SYSTEM_SPOT.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PU657 - Unknown system &1 from domain &2 with client &3 ?

  The SAP error message PU657 "Unknown system &1 from domain &2 with client &3" typically indicates that the system is unable to recognize or connect to a specified system in the landscape. This can occur in various scenarios, such as when trying to access a remote system or during system configuration.
  Causes:
  
  Incorrect System Configuration: The system might not be properly configured in the SAP Landscape Management (LaMa) or in the SAP system itself.
  Network Issues: There could be network connectivity issues preventing the system from reaching the specified client.
  Domain Mismatch: The domain specified in the error message may not match the actual domain of the system.
  Client Not Available: The specified client may not be available or may not exist in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the specified system or client.
  
  Solutions:
  
  
  Check System Configuration:
  
  Verify that the system is correctly configured in the SAP Landscape Management