Where do I paste a connection ticket code in Abantecart

[number1talent]

I have been issued a connection ticket code by my merchant provider. They told me to paste the code in Abantecart and when my customer checks out it will launch the payment interface.

My question is where in Abantecart do I paste this line of code to allow my customers to checkout after adding items to their cart and pay through my host merchant account web page?

Any help would be great.

Thanks

[abantecart]

Let's start with what merchant provider is this?