Nothing special to be done for this integration. Just pay attention to the parameters used as it is essential for the tracking to work.
Here we go!
Use &subid={clickid} for the offer URL
Use &clickid={SUBID} for a postback URL you add on the BuyGoods side
The parameters are case-sensitive!
For example:
Offer URL Website Domain Names, Online Stores & Hosting | Domain.com
Postback URL https://test.rdtk.io/postback?clickid={SUBID}