There are three primary kinds of payment processing solutions: direct acquirer integration, connectors and payment gateways. Direct acquirer integration means the software is written into the merchant’s application and goes directly to the payment processor’s system. That means you get high performance, and there’s no middleware or intermediaries to slow things down or fail, but implementation is complex. Connectors are software components or middleware added to an existing merchant application. You could see performance problems with high volumes of transactions, however, and you company is dependent on the vendor for fixes and upgrades.
With the robust and flexible UniPay payment gateway solution, implementation and certification is simplified, your company gets support for many different payment processors all at once and recurring payments are possible too — only a few of the reasons it’s a preferred choice for merchants and payment service providers.