When Dynamics 365 Finance and Operations was released the POS functions in a Single Architecture where Store POS is connected directly to Azure in Real Time .Later on after multiple research from Microsoft Understood there are retailers who works in Offline Mode where Internet connectivity is Weak. The Outcome of the research has made to work on Retail Store Scale Unit which enables the retailers to make the Modern POS work in Offline and Cloud POS for Each Store.Now each retailer can choose the Architecture based on the business needs and Purpose To Deploy the Multiple Architecture Microsoft has released Retail Store Scale unit .What does RSSU Address?Retail Store Scale Unit is targeted towards Retailers who Want to use Dynamics 365 Operations Cloud based Solution ,but at the same time have the infrastructure challenges beyond their control to remain always Connected to the Head Quarters,like weak internet Speed in different locations of the Store ,Frequent Disconnects,Different Verticals of stores.