How To Fix PU639 - Target system &1 in request &2 is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: PU - Upgrade and Transport Log Messages

• Message number: 639

• Message text: Target system &1 in request &2 is not allowed

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 PU639 - Target system &1 in request &2 is not allowed ?

  The SAP error message PU639 indicates that the target system specified in a transport request is not allowed for the current operation. This typically occurs during the transport of objects between different SAP systems (e.g., from a development system to a quality assurance or production system).
  Cause:
  
  Transport Route Configuration: The transport route may not be correctly configured in the Transport Management System (TMS). The target system may not be included in the allowed transport routes for the specific request.
  Transport Layer Settings: The transport layer associated with the transport request may not allow the target system.
  Authorization Issues: The user may not have the necessary authorizations to transport objects to the specified target system.
  Transport Request Type: The type of transport request (e.g., customizing, workbench) may not be allowed for the target system.
  
  Solution:
  
  
  Check Transport Routes:
  
  Go to the Transport Management System (TMS) configuration and verify the transport routes. Ensure that the target system is included in the route from the source system.
  Use transaction code STMS to access the TMS and check the configuration.
  
  
  
  Review Transport Layer:
  
  Check the transport layer settings for the transport request. Ensure that the target system is allowed in the transport layer configuration.
  You can check this in TMS under the transport layer settings.
  
  
  
  User Authorizations:
  
  Ensure that the user performing the transport has the necessary authorizations to transport objects to the target system. This may involve checking roles and profiles assigned to the user.
  
  
  
  Transport Request Type:
  
  Verify that the type of transport request is appropriate for the target system. For example, some systems may only accept certain types of requests (e.g., customizing requests).
  
  
  
  Consult Basis Team:
  
  If you are unable to resolve the issue, consult your SAP Basis team. They can provide insights into the transport configuration and help troubleshoot the issue further.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  STMS: Transport Management System
  SE01: Transport Organizer
  SE09: Workbench Organizer
  SE10: Customizing Organizer
  
  
  
  Documentation: Refer to SAP Help documentation for more details on transport management and configuration.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to transport errors.
  
  
  By following these steps, you should be able to identify the cause of the PU639 error and implement the necessary solutions to resolve it.