Hikashop and BoxNow

Hi,

There is no ready-made plugin for it.
Now, it seems that they have a simple widget integration mechanism available:
boxnow.gr/widget-developers
Also, on the page boxnow.gr/en/e-shops in the section "How integration stage looks like?", they say:

Whether you have a custom-made site or you use a platform builder site, our IT analysts will help you end-to-end from the API or plug-in installation to website testing, label testing and physical testing.

I'm not sure what it entails, but maybe they can help you integrate their widget on the HikaShop checkout. For example, with a custom order field to store the selected BoxNow locker in the order and a view override to add the widget code to the checkout.