Consider reach and the level of engagement as the two major elements of the measuring process.
For e.g. let’s investigate the social media marketing metrics. Each social platform has its own specific Digital Marketing metrics like Facebook Insights, YouTube or Twitter analytics. But regardless of the way it is represented, the most important aspects to look at are the levels of reach and engagement. You can consider these two elements as a measure of the health of your social media marketing profiles.
In terms of, are you being visible? And are your online communities interacting with your content?
However, be mindful that although these social media marketing metrics are easily accessible, trying to establish a correlation between the reach, engagement and action levels is vague and nonexistent. But since social media activity effectively provides a sturdy platform for business impact, monitoring it should be considered as an important rung in the ladder and not as a complete evidence of success.