How To Fix TK243 - No transports allowed from application systems to Basis systems

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 243

• Message text: No transports allowed from application systems to Basis systems

What causes this issue?

The current system &V1& is an application development system. The
target system &V2& for the request is a Basis system.

System Response

Transports cannot be performed from application systems to Basis
systems.
The action is terminated.

How to fix this error?

Choose an application development system as the target system for your
request.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TK243 - No transports allowed from application systems to Basis systems ?

  The SAP error message TK243, which states "No transports allowed from application systems to Basis systems," typically occurs in the context of transport management within SAP systems. This error indicates that the system is configured to prevent transport requests from being moved from application servers to Basis systems (such as the SAP kernel or database systems). 
  Cause:
  
  
  Transport Route Configuration: The transport route may be incorrectly configured. In SAP, transport routes define how transport requests can move between different systems (e.g., Development, Quality Assurance, Production). If the route does not allow transports from application systems to Basis systems, this error will occur.
  
  
  Transport Layer Settings: The transport layer settings may restrict certain types of transports. Each transport layer can have specific rules about which systems can send or receive transports.
  
  
  System Type Restrictions: The system type (e.g., Development, Quality, Production) may have restrictions on transport directions. For example, a Production system typically does not allow transports from Development.
  
  
  Transport Directory Issues: There may be issues with the transport directory or the transport management system (TMS) configuration.
  
  
  Solution:
  
  
  Check Transport Routes: 
  
  Go to the Transport Management System (TMS) configuration in the SAP GUI (transaction code STMS).
  Verify the transport routes and ensure that the route from the application system to the Basis system is correctly defined and active.
  
  
  
  Review Transport Layer Settings:
  
  Check the transport layer settings in TMS to ensure that they allow the desired transport direction.
  You can access this through transaction SE03 (Transport Organizer Tools) and then navigate to the transport layer settings.
  
  
  
  System Type Configuration:
  
  Ensure that the system types are correctly configured. For example, a Development system should be able to transport changes to a Quality system, but not directly to a Production system.
  
  
  
  Consult Transport Logs:
  
  Review the transport logs for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Check Authorizations:
  
  Ensure that the user performing the transport has the necessary authorizations to execute transports between the specified systems.
  
  
  
  Contact Basis Team:
  
  If you are not able to resolve the issue, it may be necessary to contact your Basis team or SAP support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  STMS: Transport Management System
  SE03: Transport Organizer Tools
  SE09/SE10: Transport Requests
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on transport management and configuration.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to transport management and the TK243 error.
  
  
  By following these steps, you should be able to identify the cause of the TK243 error and implement the necessary solutions to resolve it.