Please see my comments below:
Questions:
- Can this be used for transferring materials between storage locations belonging to two different plants?.
NO ,You have to use std stock transport process between the plants.
- Can this functionality be turned on by plants?
It is only useful to transfer the stock between two storage locations with in the plant.
- Can we have this functionality as an option feature after activation?
If you need STO process between storage locations with in the plant you can configure otherwise follow your std process.
- What all the changes do we expect to standard SAP Purchase Order views on activiting this functionality?
Nothing,It just works normal sto process .Only difference is Supplying and receiving plants is same except storage location.Please note in this process there is no accounting documents .
If you want storage location storage location sto process I can share the document.Please share your email.