How To Fix 0T126 - QA client &2 in system &1 does not match transport settings

SAP Error Message - Details

• Message type: E = Error

• Message class: 0T - WBO Configuration Editor / SE06

• Message number: 126

• Message text: QA client &2 in system &1 does not match transport settings

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

What causes this issue?

The active transport route configuration is client-dependent. However,
a QA system with a client was specified.

System Response

The specified QA client is ignored.

How to fix this error?

After activating the transport routes, this warning should not appear
again.

Procedure for System Administrators

Check the tp profile parameter <ZK>CTC</>. It should have the value 1.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 0T126 - QA client &2 in system &1 does not match transport settings ?

  The SAP error message 0T126 indicates that there is a mismatch between the Quality Assurance (QA) client settings and the transport settings in the SAP system. This typically occurs when the transport configuration for the system does not align with the client settings, which can lead to issues when trying to transport changes or configurations.
  Cause:
  
  Client Configuration Mismatch: The QA client settings may not be properly configured to match the transport landscape settings.
  Transport Route Issues: The transport routes may not be correctly defined, leading to inconsistencies in how transports are handled between different systems (e.g., Development, QA, Production).
  Transport Layer Settings: The transport layer assigned to the QA client may not be correctly set up or may not correspond to the expected transport layer for that client.
  Transport Directory Issues: There may be issues with the transport directory or the transport management system (TMS) configuration.
  
  Solution:
  
  
  Check Client Settings:
  
  Go to transaction SCC4 and verify the settings for the QA client. Ensure that the client is set up correctly and that it is assigned to the correct transport layer.
  
  
  
  Review Transport Routes:
  
  Use transaction STMS to check the transport routes. Ensure that the routes are correctly defined and that the QA client is included in the appropriate transport routes.
  
  
  
  Verify Transport Layer:
  
  Check the transport layer assigned to the QA client. You can do this in transaction SE03 (Transport Organizer Tools) and ensure that it matches the expected transport layer for the QA environment.
  
  
  
  Check TMS Configuration:
  
  Ensure that the Transport Management System (TMS) is properly configured. You can access TMS settings via transaction STMS and check for any inconsistencies or errors in the configuration.
  
  
  
  Transport Directory:
  
  Verify that the transport directory is accessible and that there are no issues with the transport files. You can check the transport directory settings in transaction SE03.
  
  
  
  Consult SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SCC4: Client Administration
  STMS: Transport Management System
  SE03: Transport Organizer Tools
  
  
  SAP Notes: Search for SAP Notes related to transport issues and error messages for further guidance.
  Documentation: Review SAP documentation on transport management and client settings for best practices.
  
  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.