CMS is the Content Management System which serves as the the repository of all your data, including your customer database, order history, and products. This is where you will configure the majority of your settings for your RUSH-powered Loyalty and/or E-Store. This is usually accessed by Head Office personnel (or merchant account admin) who will create changes to your program. You can visit this link to see the available modules on CMS.
On the other hand, the RUSH Merchant App serves as your day-to-day store management software accessed by your store frontliners. This is where your front liners can perform daily operational functions, which include managing branch-specific eStore orders or Loyalty transactions. Visit this link to learn how to use and navigate the RUSH Merchant App.