Hi,
For the Joomla user accounts, you need to use extensions available on the JED:
extensions.joomla.org/category/migration...sers-import-a-export
Once done, click on the "check database" of the HikaShop configuration to have the new user accounts synchronized in HikaShop.
If you need to import other data from VirtueMart, you would need to install HikaShop on the old website, run the import from VirtueMart (
www.hikashop.com/support/documentation/7...port.html#virtuemart
), get the tables of hikashop in the database of the old website and put them in the new website database (only the ones you need) and then run a "check database" in HikaShop.