You can assign your e-shop with other information, accountant system.
Bellow you can find the Api specification link. Other system must do some changes, that e-shop export data to other system and other system import data. It's useful if you want to renew the quantity of stock.
http://klientams.freeshop.lt/images/stories/dokumentacija/api_specification.pdf
By preparing the integration you must assign systems: Components > Webservices VirtueMart
Freeshop.lt e-shop solution is regularly updated, developed and created according the SEO requirements. E-shops are placed on the our servers in Lithuania. Customer support is via e-mail in two languages: Lithuanian and English. Help instructions and consultations are free of charge.