We can make your website synchronize with almost any external application. Our bespoke e-commerce solutions already have stock management functionality integrated, but we understand that you might want to use a different software for that.
We have been asked to integrate third-party accounting software to some clients' applications. If you are in search of a popular accounting software we suggest looking into: Sage One, Zoho Books, Pandle, Kash Flow, Clear Books, Free Agent.
For third-party stock management software, please take a look at TradeGecko, Veeqo, EMERGE App, Orderhive.