Hello,
Affiliate Tracker calculates the commission taking into account the total amount of the transaction.
In order to do what you want, a little bit of custom coding would be needed.

However, if the shipping value is always the same, you can adjust the percentage in order to not take it into account.

Thank you,
Joan

I just want to calculate the commission on subtotal, not taxes, shipping, etc.
What module do I modify?

Hello,
to do so, you would need to modify the integration plugin which creates the conversions.

This is a good question, and one which I would like to have answered as well. Can we have some help to modify the plugin?

Which plugin and extension are you using?

Each one works different. If the extension allows it, we can do it.

I'm using the plugin for K2 Store on the Affiliate Tracker extension.

In this case you only need to modify a line of code.

If you open the file /plugins/k2store/affiliatetracker/affiliatetracker.php

In line 62, you should have:
"value" => (float)$order->order_total ,

So, you should replace this line with this one:
"value" => (float)$order->order_subtotal ,

If you don't feel comfortable doing this, you can send me ftp access to joan@ joomlathat.com and I will do it for you.

Thank you,
Joan

i am using Hikashop. what statement needs to be changed to what?

Hello teripratt,

For Hikashop you need to change the file /plugins/hikashop/affiliatetracker/affiliatetracker.php line 51:
"value" => (float)$order->order_full_price ,
For:
"value" => (float)$order->order_full_price - (float)$order->order_shipping_price,

Regards,
Joan