When a user visits the landing page and gets out, but then comes back later on another time, can you still get paid for the sale?
For example, they see the landing page and comes back and searches the offer through Google. Would you still get paid for the sale?
Depends if you mean your personal landing page or the advertiser's website. If yours, no since no cookie was set via the advertiser. If the advertiser's landing page is what you are taking about, it depends on how they set their tracking cookie. Most have a set period (i.e. 1 day, 30 days, etc.) whereby if the surfer returns you get paid but after that period is over then no you would not.
If you are running an e-commerce/retail offer like AliExpress or Lazada the cookie (from the advertiser's LP) typically lasts 1 month.
DealExtreme takes it even further and has a 2 month cookie lifespan.
Ask your AM what the cookie lifespan of your offer is or look for it within the offer's details page.
Hope this helps. 
Definitely helps, thanks guys!
Hey,
also with offers like LAZADA you need to be careful. They have a very strict Last Click Policy. Which means all traffic sources, including internal ones (like email and banners) do compete for the last click and can steal your commissions.
This gets especially dangerous in combination with massive retargeting by the retailer.
Cheers
Last cookie counts. So if your ad is the last one the user clicked on before making the purchase - and still within the cookie duration - then you get the sale commissioned to your account.
Important to check is how long the cookie last. Especially with big brand names. If the cookie duration is long, you can just run them on pop traffic, drop the cookie, and wait until the sales come in. For that reason companies like Flipkart put a cookie duration of one day so the cookie-dropping strategy doesnt work with them. There's plenty others it does work with though.