Payment Processing and Acceptance When deciding to deploy an order management solution merchants must be careful to select a product that integrates with their respective payment processing engine Cigarettes Online USA. In order to accept all major credit cards in your retail or restaurant business a merchant will require a merchant account, a point of sale solution and if conducting business online a certified shopping cart. The ability to accept and process multiple electronic payments Cigarettes Online Free Shipping, including credit cards and checks, is considered a standard feature in today marketplace. International merchants have the added concern of ensuring they have the ability to deploy a point-of-sale solution that can be used globally by their respective locations. Open source solutions are generally available without requiring the additional deployment cost. Vendors typically try to the ticket by including costs for consulting, customizations and training. Some vendors even charge merchants to fix software defects. Open source software includes access to all source code which provides an avenue for merchants and their developers to customize their deployment without the added expense of proprietary systems.