Use
You can delete a transport domain if:
If you want to delete a transport domain, you must delete the TMS configuration for all systems in the transport domain.
Prerequisites
Ensure that no objects are transported while you delete the transport domain.
Procedure
To delete the transport domain:
For more information, see
Deleting an SAP System from the Transport Domain.Result
The TMS is deactivated for systems that had the TMS configuration deleted.
You can now rebuild the transport domain.