Hi,
Here is the documentation text for that option:
If set to inherit, HikaShop will use the user group configured in the Joomla user manager settings screen for the user group of newly registered users registering from the HikaShop registration form.
If set to a user group, HikaShop will use that user group instead.
Finally, it's also possible to select a custom address field or a custom user field of the types radio button, simple dropdown, multiple dropdown or checkbox. That way, you can let the customer choose himself his user group among a list of user groups you entered in the values of the custom field.
The custom field values should have the user group id in the "value" column for the system to work properly in such cases.
If you want to manually check the employee code, you can have them added to a temporary user group, and then when you check their id, you can move them to the user group you want the employees to have.
If you want to automatically check the employee code, then you can develop a custom plugin of the group "hikashop" and implement the onBeforeUserCreate trigger (
www.hikashop.com/support/documentation/6...r-documentation.html
) so that you can have your own code contact some API or check some database to validate the employee code automatically.