Hi,
We made improvements in this plugin in HikaShop 2.1.1 like explained in the Change log.
www.hikashop.com/support/documentation/5...ashop-changelog.html
We now logout users if their user groups have been changed after the purchase so that they have to login after and get the new user groups permissions
The user groups are processed during the user login. If we change them while the user is logged, it does not affect the user session. That's why we logout the user in this case.
But if the order is confirmed by an external call (a "server to server" notification) we can't logout the user because it's not him who "open" the page.
We can't know when the order will be confirmed, we can't know if we have to logout the user when he comes back from the payment website.
So except by implementing something in joomla to logout a user after a modification... I don't know what else can be possible.
Regards,