Very often you need your product price to be decided by some function like if length is between some range and height is between some range , price is different and so on.Here comes the rescue , here you can have dynamic product price driven by variables , you can have as many as 26 variables and one can write formula using these variables.
you can also define global variable and make use of it .For example your products depend on gold price which is variable , that you can define in admin and make use of it in function so changing global variable there will automatically change price elsewhere.
It is assumed you know php before buying this extension else you will land your price to be wrong.
Though maker of this extension can help you writing function , but that is not mandatory so confirm before buying.
if you want price to be determined by formula only then
you can buy the following extension
Developed by shambhal who holds maximum opencart reviews on freelancer.com
This extension is vqmod for <2 opencart and ocmod based for version 2 onwards, therefore no core changes
You can also set constraint of variables max and min value if(option type is textbox) , like for length you can have l:100-450 so it can accept any numerical value between the range.
Variables are assigned to options so you can have better control on options.
It works with options in select combox and textbox
iThelps you have dynamic price function on frontend , plus it has feature to have advance options.
Please note that it works on default opencart structure ,so if you have any extension which contradicts it ,it won't work.
so please confirm before buying . Themes supported for version >1.5
default, journal2, newstore , pav shopping office. If you don't use function - it still will update price when options selected (for version >1.5)
Constraints on variables assigned to textbox can have numerical values only.
For further queries you can ask me at email@example.com
What customers say about price by function + LIVE PRICE UPDATE
A very powerful underated extension.
Worth every penny. Support is the best