Minimum basket value -- can it be done?

[unflatpack]

Hi Guys,

 

we sell assembly services through our custmised prestashop. We have a minimum order value of £35 and we then use shipping to add a callout charge £15. Essentially we cant send somebody out for less than £50.

What we want is the basket is processed at £35 even if the items allready added are less than £35. Obviously if it is more then we charge the higher amount.

Idealy there would be a dynamic item called 'minimum order surcharge' that subtracts the current total from the minimum and adds it in as a surcharge. So I guess the basket would look like:

 

item 1 £10.20
item 2 £5
min order surcharge £19.80

 

total £35
Callout £15

 

Total £50

 

Anyone done anything similar or have any good ideas.

As ever. thanks!!