Raise a stock request from required branch easily, follow the process here
The branch who required a stock need to raise a request from their end which would come over in warehouse
1. Go to Setup >> Product
2. Now click on Product Order >> Create New
3. Click on Create New > Add product request
4. Now when you get on page click on Create New
5. Select the products, Put quantity that you required and select whether thats retail or inhouse product
6. Click on Save
Now the Request for product added successfully the status will pending until your transfer that.
To Transfer the stock
1. Go to warehouse >> pending order.
2. Click on three dots >> Transfer
Also, here is the video tutorial for your reference