Advantages of the Stock Transport Order in SAP LE-

Advantages of the Stock Transport Order
The transfer of stock using a stock transport order has the following advantages over the transfer of stock without a stock transport order:
A goods receipt can be planned in the receiving plant.

You can enter a vendor (freight vendor) in the stock transport order.
Delivery costs can be entered in the stock transport order.
The stock transfer order is part of MRP: Purchase requisitions that were created in MRP can be converted into stock transport orders.
The system can run an availability check for the stock transfer.
See Availability Check for Stock Transport Orders
The goods issue (GI) can be entered using a delivery via Shipping ( LE-SHP ). For the goods issue in SD, a replenishment delivery is created.
You can enter a goods issue for the stock transport order in either Inventory Management (MM-IM) or Shipping (LE-SHP).
See Posting a Goods Issue in Shipping and Posting a Goods Issue in Inventory Management
If you want to withdraw materials for stock transfers from different storage locations and stocks according to a particular strategy, you can use stock determination .
The goods receipt (GR) can be posted directly to consumption.
The entire process can be monitored via the purchase order history.

You can use the following procedures to transfer materials from one plant to another:
Stock Transfer Between Plants in One Step
Stock Transfer Between Plants in Two Steps
Stock Transport Order Without Delivery
Stock Transport Order with Delivery via Shipping
Stock Transport Order with Delivery and Billing Document/Invoice