Credit card processing is the most important aspect of online trading. Which company you choose depends on finding the best rates and the features you need. The merchant account or Credit Card Processing (CCP) Company you deal with will have to be compatible with your website and offer cost effective rates. They must also offer reliability, service and the features you will need to run your online business efficiently. There are many options available and you can choose a traditional merchant account or a 3rd party pay as you go processor. Key features are mobile processing of all types of cards and e-wallets so that you do not lose any sales. Most Point of Sale systems offer advanced features for mobile payments together with inventory management and key features needed to keep track of sales and customers.