Monthly or quarterly sales, new customers, contract renewal rate - these are all common KPIs in business.
But they're all looking backwards. They're telling what has happened. Afterwards. When you've got no chance to influence it.
Nor does it matter how many likes or comments your post gets.
But so often these metrics are used to measure the "success" of a campaign.
It's a bit like being called a hero; it has no value if you do it to yourself.
"Entrepreneur" is a word others will use to describe you if you exhibit entrepreneurial traits; it's not a job title.
Give the customer what they want.
Probably the most important six words in business. Almost every company that I have seen succeed has done just that. And every single business thinks it's what they're doing.