The real value of internet marketing is in the ease of setting up analytics by communication channel, measuring performance of campaigns and thereby directing/redirecting valuable marketing budget toward campaigns that yield higher return. Therefore, setting clear marketing KPIs is crucial before implementing any online marketing activity.
It must be reiterated that executing marketing campaigns in any channel is a tactic, perhaps one of several tactics that a marketing manager or director might include. Other online and offline channel tactics might include SEO, Google Adwords, Microsoft adCenter, email marketing, newspaper and magazine ads, radio and television ads, brochure distribution and leaflet drops etc.. It is important to recognise that Facebook ads is a channel in which we undertake tactics to sell things. Hence, think of your KPIs as what you want to accomplish and the relevant tactics as how you undertake your marketing activities to achieve these KPIs.