RE: Inventory reservation from main warehouse
Hi rfernandezp,
What is your mode of transffering inventoty from Child to Main? If you are using MRP along with transfer order , you can set up
1. Coverage group setting up planned order type transfer.
2. Also you need to set up "Reserved Inventory" check mark of transfer order set up.
This Should reserve inventory in child warehouse and if inventory is not available it will become reserved order (Sales Order and Transfer Order). Also It will ask for Purchase Order, for that you need to set up item coverage group for child warehouse
I hope this might resolved your problem