Logic in ordering form fields

[FabioSantos]

Hello,

 

Iam new in whmcs.

I want put some logic in ordering form fields.

Someting like this request : https://requests.whmcs.com/topic/logic-in-ordering-form-fields

 

I did some research and i need your help to know what is the best way to implement some logic.

 

I looked to Creating a Custom Order Form Template (http://docs.whmcs.com/Order_Form_Templates)

But this is to category of products and not to the products himself.

 

In http://docs.whmcs.com/Standard_Order_Form_Templates talk about "Using Different Templates for Different Products"

and redirect to http://docs.whmcs.com/Linking_to_WHMCS#Order_Links.

 

But don't understand that.

For example : Direct Shopping Cart Link Specifying Template

This is the link will open when client order a product? Is possible change this link to use other template in link tab On Product/Services Configuration?

I can't edit link tab.

 

Anyone can help me? Anyone can give me some directions about what is the best way to put some logic in order form?

 

Thanks.

 

Regards,

Fábio Santos