As I have told that already, I know, it will not update the field "Transit/Transf" or "Stock in Transit" in MMBE or MB52. But I think it doesn't mean that system will not post the stock from unrestricted to transit and this note says that "You can use the reporting function in Purchasing to display the stock quantities in transit." Why is it saying 'transit' as you are saying "there is no stock in transit posted".
My concern is just system will post the stock from unrestricted to transit for the cross company STO (after post the movement type 643). But not as same like as intra company.
Here matter is same but just system will update the field "Stock in Transit" for intra company STO and it will not update the field for inter company STO.
But for both case system is posting the stock from unrestricted to transit.