Think about the scenarios like,
On an e-commerce website, 70% of customers are leaving shopping after adding items to Carts, One of the many factors is that customer wants to explore products more.
Can we offer them an opportunity that they could discuss products with their peers during their shopping?
A new client Join a music store online, but he is not getting same music that his/her friend has gotten. The customer wants his/her friend to add some music to the cart or at least could advise where he/she could find.
Its a beer party at my location, I want to allow my friends to buy beers of their choice, all delivered right on my place.
Along with my colleague Wessel Terpstra, I did a presentation at Stockholm Ascend 2018 to answer those challenges where we empowered Quick Silver with SignalR to allow two different customers join a single shopping session where they could share products instantly in real time and can add products into friends cart also to improve conversion.
Example Code can be found at GIT