"views") and clicks, respectively, in a CPL pricing model advertisers pay only for a qualified sign-up regardless of how many impressions or clicks their advertisement receives.
CPL campaigns are suitable for brand marketers and direct response marketers looking to engage consumers at multiple touchpoints – by building a newsletter list, community site, reward program or member acquisition program.
In Cost per action campaigns (CPA), the advertiser typically pays for a completed sale involving a credit card transaction.
CPA is all about 'now' – it focuses on driving consumers to buy at that exact moment.
There are other important differentiators: CPL advertising is more appropriate for advertisers looking to deploy acquisition campaigns by re-marketing to end consumers through e-newsletters, community sites, reward programs, loyalty programs and other engagement vehicles.