An additional figure has been added to the OWH column in the Stock Requirements Manager, that displays on the second line for each product in Magenta, which shows the quantity on order in other warehouses excluding all WHTFR (Internal Stock Transfer) Purchase Orders.
For example, below shows product 300000 with a quantity of 5 available in other warehouses and a quantity of 30 on order from suppliers in other warehouses.

Stock Requirements Manager Screen