X-Cart forums

[GMarler]

I understand and have set the minimum order qty per item, but what files would need to be altered to increment order qty by minimum amount so customers will only be able to order in case qty (minimum qty order in x-cart)

[PhilJ]

Usually...

/skin/common_files/customer/main/buy_now.tpl
/skin/common_files/customer/main/product_details.tpl
/skin/common_files/customer/main/cart.tpl

It depends if you're using the quantity input field, or quantity select dropdown, but in either case you need to add a 'step' attribute and possibly some additional JS validation code on top.

https://www.w3schools.com/tags/att_input_step.asp
https://www.smarty.net/docs/en/language.function.section.tpl

Also depends whether you want to do it store-wide, or on just a selection of products. If the latter, then you'll probably need a custom product field.