While making the sales order, a default warehouse is automatically set in the item table. How can I change this? Also I do not require a default warehouse since I have multiple warehouses. How can I set this value as NULL so that each time, I need to input the warehouse manually?
Remove default Warehouse from Stock Settings.
Remove from default Warehouse in Item Master.
If you remove the default Warehouse from Stock Settings and then you create an item, it will not set the default warehouse in Item Master.