How To Fix XT026 - Required TMS service not yet available in system &1

XT026 - Overview

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 026

• Message text: Required TMS service not yet available in system &1

What causes this issue?

The TMS version in the SAP system &V1& of the transport domain &V2& is
&V3&. The required TMS service is only available from version &V4&.

System Response

The function terminates.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

XT026 - Details

• The SAP error message XT026 "Required TMS service not yet available in system &1" typically occurs in the context of the Transport Management System (TMS) when there is an issue with the configuration or availability of TMS services in the SAP system. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  TMS 
  Configuration Issues: The TMS may not be properly configured in the SAP system. This can happen if the TMS configuration was not completed or if there are inconsistencies in the transport routes.
  Missing Transport Directory: The transport directory may not be set up correctly, or the transport directory may not be accessible.
  System Not Registered: The system may not be registered in the TMS landscape, or there may be issues with the transport domain controller.
  Network Issues: There could be network connectivity issues between the systems in the transport landscape.
  Authorization Issues: The user may not have the necessary authorizations to