How to reassing a System to another customer number

Hi

We have ECC and CE instances that we need to transfer to another customer number, he'll be the new owner of those instances.

This new customer will use the same infrastructure (same installation, network, server, etc), so we only need to change the ownership of the instances, and avoid the work of re-doing everything (installation, configuration, etc).

I found this note 198140 and the item 2 explains the procedure.

Is the procedure described in the note sufficient for achieving what we want? Is there additional configuration that needs to be done in SolMan or another component which is not detailed in this note?

Any helps will be much appreciated!

Thanks