How To Fix PU351 - Transport layer from & to &

SAP Error Message - Details

• Message type: E = Error

• Message class: PU - Upgrade and Transport Log Messages

• Message number: 351

• Message text: Transport layer from & to &

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PU351 - Transport layer from & to & ?

  The SAP error message PU351, which states "Transport layer from & to &", typically occurs during the transport of objects between different systems in the SAP landscape. This error indicates that there is an issue with the transport layer configuration, which is essential for the proper movement of transport requests.
  Cause:
  
  Transport Layer Configuration: The transport layer may not be correctly configured in the Transport Management System (TMS). This can happen if the transport layer is not assigned to the source or target system.
  Missing Transport Layer: The transport layer might not exist for the specified source or target system.
  Incorrect System Configuration: The system might not be correctly defined in the TMS, leading to issues in transport routes.
  Transport Route Issues: There may be issues with the transport routes defined in TMS, such as missing or incorrect entries.
  
  Solution:
  
  
  Check Transport Layer Configuration:
  
  Go to the TMS configuration (transaction code STMS).
  Check the transport layer settings for both the source and target systems.
  Ensure that the transport layer is correctly assigned to both systems.
  
  
  
  Verify Transport Routes:
  
  In TMS, check the transport routes to ensure that they are correctly defined and that the source and target systems are included in the routes.
  Make sure that the transport routes are active.
  
  
  
  Assign Transport Layer:
  
  If the transport layer is missing, you may need to create or assign a transport layer to the relevant systems.
  Use transaction code SE06 to manage transport layer settings.
  
  
  
  Check System Configuration:
  
  Ensure that the systems are correctly defined in the TMS and that there are no inconsistencies in the system landscape.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. SAP Notes can provide additional insights or patches that may resolve the issue.
  
  
  
  Transport Management System (TMS) Configuration:
  
  If you have recently made changes to the TMS configuration, ensure that all changes are correctly applied and that the transport landscape is consistent.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  STMS: Transport Management System
  SE06: Transport Organizer Tools
  SE01: Transport Organizer
  
  
  SAP Notes: Always check the SAP Support Portal for any specific notes related to the PU351 error, as they may provide updates or fixes.
  Documentation: Review SAP documentation on transport management for best practices and troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.