Hello people, i am total newbie to CPA world.I got accepted in CPAWay today and want to set up things. ok so my First Question What is W9 or W8 .I think it's some kind of contract but still anybody can explain me the thing from image ? Code: http://i.imgur.com/VEVsH.jpg My second Question is about postback URL and different "SUB ID" ,what are they used for ? Please explain me all the option present in the image . Code: http://i.imgur.com/ywul4.jpg Zoom the image if you are not able to see it. EDIT: please explain me different traffic types meaning Cash Incent Point Incent Social Incent Content Locker Email Paid Search SEO/Organic Search Banner/Text Links Coreg/IFrame Pop Ups Contextual Social Network I want to promote coupon alert download offer from my website .So is it allowed and if yes it fall under which type of traffic ? my website is currently in top 10 and receive 100+ uv/day . Thanks!