The number of available products can not be changed, when serial is attached

-- url of the page with the problem -- : www.picton.place
-- HikaShop version -- : 3.3.0
-- HikaSerial version -- : 2.1.0
-- Joomla version -- : 3.8.3
-- PHP version -- : 7

It is not possible to change the number of available Products, when a serial is attached. It's always set to endless. When i remove the serial package, it works. So are there any settings, that allow serials attached to Products, that have a limited availability?
greetings
Peter

Hello,

See : www.hikashop.com/support/documentation/1...ration.html#main_adv

When you link the product quantity with serials, you do link the product quantity with the number of available serials.
And by using a serial generator (or activating a setting in the pack configuration), the number of serial can be virtually unlimited ; which make the product quantity unlimited too.

Regards,