PS 1.7 - exclud Article from minimum order

[msc]

Hello Community,

I have just set up my first PrestaShop (Vers.1.7) and am very enthusiastic about the shop solution.
I would like to offer a delivery service and come so far very well with PS.
Orders can be triggered from a minimum order value - which works as well.
The minimum order value without VAT is stupid, but I have already solved.
Problem is - certain items (such as tobacco) should be excluded from this minimum order.
Does anyone have an idea how to realize that?
It would also be great to validate the postal code so that our delivery area is confirmed or rejected in advance.

Best regards
Micha