Multiple warehouses are managable from the Invoice4u system.
The Warehouse feature is activatable by going to Settings > Account Settings and checking the Warehouse Management box.
Once activated find your Warehouse Documents under the Products menu.
Please note that this feature is available from the Professional plan upwards.
Entering New Warehouse Inventory
Go to Warehouse > Warehouse Documents > Add New Document then select Acceptance of Goods (AG) after which you go to Settings > Account Settings > Configuration > Products > Automatic Generation of Acceptance Documents and select Generate an Acceptance of Goods (AG) on the Cost Invoice
Stocktaking Dating
When issuing stocktaking documents the system will generate an inventory balance. This allows you to see stock flow.