By visiting a company's profile, you'll be able to click the "Add Connection" icon to send a connection request.
You'll be able to add a personal message before sending the request.
After sending the request, the "Add Connection" icon will change to "Pending".
If you are a buyer, you can also connect to the seller company on the Shop page if you're viewing all brands. Each of the panels will have a brand on it and the connection icon will indicate whether the brand is connected to you or not. If highlighted, the brand is connected and if not, you can click on it and start the connection process.
While viewing products, if you are not connected, hovering over the product will prompt you to connect to view the price. If the price is already visible, you need to be connected to add the product to your cart.
The same logic goes for the product detail page.
When the connection has accepted your connection, you'll receive a notification.
Hovering over the notification icon will show you connection requests.
Clicking on 'Accept' accepts the connection request. 'Not now' option is provided to reject the connection request with options.