How To Fix TR679 - You may not change the transport layer from &2 to &4

SAP Error Message - Details

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 679

• Message text: You may not change the transport layer from &2 to &4

What causes this issue?

Package &V1& belongs to the transport layer &V2&.
You attempted to assign the new package &V3& to an object, even though
this package belongs to the transport layer &V4&. You cannot change the
transport layer.

System Response

The function terminates.

How to fix this error?

Assign a package from the transport layer &V2& to the object.
If you need to change the transport layer due to errors, it must be
done by the user DDIC or a user with the authorization S_CTS_ADMIN.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR679 - You may not change the transport layer from &2 to &4 ?

  The SAP error message TR679 indicates that there is an attempt to change the transport layer of a transport request, which is not allowed. This error typically occurs when you try to modify the transport layer of a transport request that is already assigned to a specific transport layer.
  Cause:
  The main causes of this error include:
  
  Transport Layer Assignment: The transport request is already assigned to a specific transport layer, and SAP does not allow changing it to another layer once it has been created.
  System Configuration: The transport layer is configured in such a way that it restricts changes to ensure consistency and integrity in the transport management system.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to make changes to the transport layer.
  
  Solution:
  To resolve the TR679 error, consider the following steps:
  
  
  Check Transport Layer: Verify the current transport layer assigned to the transport request. You can do this by checking the transport request in the Transport Organizer (SE09 or SE10).
  
  
  Create a New Transport Request: If you need to use a different transport layer, the best approach is to create a new transport request with the desired transport layer instead of trying to change the existing one.
  
  
  Review Authorizations: Ensure that you have the necessary authorizations to make changes to transport requests. If you lack the required permissions, contact your SAP Basis administrator.
  
  
  Consult Documentation: Review SAP documentation or notes related to transport management for any specific guidelines or restrictions regarding transport layers.
  
  
  Contact SAP Support: If the issue persists and you believe it is a system error, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transport Management System (TMS): Understanding how TMS works can help in managing transport requests effectively.
  Transport Layer Configuration: Familiarize yourself with how transport layers are configured in your SAP system, as this can impact how transport requests are handled.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  
  By following these steps, you should be able to address the TR679 error and manage your transport requests appropriately.