Decoupling a Transport Request 
You can decouple changeable transport requests from change documents.
Example
A development in a normal change is not finished, and is to be moved, because the change cycle is to finish. To separate these developments from your change document and finalize the other parts of your project, you can decouple the transport requests with the unwanted changes.
Procedure
Select a transport request in the Transport Management assignment block.
Choose
More 
Decople Transport Request 
.Confirm that you want to decouple the transport request, in the dialog box.
Result
The transport requests are decoupled from your change document, and are no longer displayed in the Transport Management assignment block. When you transport the changes in this change document into your production system, the decoupled request is not transported. You can assign it to another change document, with the function Assign Transport Request.