Tracking of Shipment in Purchasing

Hi All,We have a requirement to trace the shipment on transit for purchase orders.

Here is the scenario;

1. Purchase orders are sent to supplier.

2. Once the material is shipped, the supplier will send the shipping details.

3. From the shipping details, users will create the inventory lots through P4312 with receipt routing. The quantities will reflect as "In Transit". Sales will be able to pick the lots in the sales orders.

The bill of lading is entered in lot memo field and expected shipment arrival date is entered in one of the user date.

All the above steps are working fine.