1. Go to Point of Sale > Settings.
2. Click on the "POS Mass Assign" tab.
3. Key in the "Quantity" available.
For Example:
There is a Product P1 with a stock value of 100 in the Woocommerce store. You have two outlets Outlet 1 and Outlet 2 and you assign product P1 to these two outlets.
If you configure the value (let's say 20) for the field Enter Quantity, the quantity 20 of product P1 will be assigned to both the outlets automatically.
The Enter Quantity field basically bulk assigns the default product stock to the POS outlets and enables the POS assigned products automatically.
Hence, the master stock of the product P1 will become 140.
Here's the calculation breakdown:
P1 stock value in Woocommerce store (100) + stock of P1 in Outlet 1 (20) + P1 stock in Outlet 2 (20) = 140.
Note: This will apply to all products that available in the POS currently.
For the future stock update, the admin is advised to add it manually.
4. Click "Bulk Assign" once done.