If you are not in China and want to collect money in China Mainland, Alipay will charge you commission via other alipay payment methods. Maybe you want to avoid commission, and this extension is one of the best choices for you.
You can click opencartchina's extensions download other Alipay Payment Gateways such as: Alipay Direct Payment Gateway, Alipay Mobile Webpage Payment Gateway and Alipay ESCOW (Guarantee) Payment Gateway etc
如果您身居中国大陆之外，又想开展中国大陆的电商业务，则您可以使用此支付宝转账支付手段，以此避免与支付宝签订其它协议时的苛刻条件以及相关佣金。
支付宝转账接口，类似于银行转账功能。
你可以点击 opencartchina's extensions 来下载其它支付宝交易接口，如：支付宝即时到账接口，支付宝担保交易接口，支付宝手机网页支付接口等
Demo For OpenCart 2.x：http://coc012.chinaopencart.com
Admin Demo: http://coc012.chinaopencart.com/admin
Username: demo
Password: demo
Installation & Tutorial of OpenCart Extension – Alipay Transfer Payment Gateway
来源：oschina
链接：https://my.oschina.net/u/991572/blog/390993