Dashboard / Campaign / Edit / TQ & Analytics / Scroll down to Conversion Tracking
Enter any name you want in ""Enter goal name" (and leave "conversion value" to 1).
From now on, the value sent in your post-back will appear in our system as a "Goal", and we can optimize bids. A "Goal" is basically the target CPA or CPI or value per conversion you want to reach.
For example: you have a dating campaign and you are looking for $2 leads then just set &value=2 in the post-backURL.
You can now bid at optimal level and adjust your bids on the go. You can also activate the auto bidder to have prices adjusted automatically.