It’s almost like a bad joke:Question: 'What did the CPA marketer earn?'Answer: 'Two dollars and thirty-seven cents.'Question: 'What did the CPA marketer spend to get it?'Answer: 'Five hundred and fifty dollars.'It’s happened this way, more than people like to admit - but it doesn’t have to be this way. The most common causes of CPA disappointment are:·Insufficient market research·Failure to track daily expenses·Lack of basic business knowledge 3