Success with social media will only be
achieved if you know exactly why
you're doing it, what your objectives
are and how you're going to measure
the results. Different objectives require
very different approaches:
Marketing
Gaining traction to build a brand, sell stuff, build a
community, get registrations etc. is becoming more
and more difficult. The days of success through
website scraping, low-cost competitions and the
mythical 'viral video' are over.
You need a strategy based on unique and stand-out
content to succeed and build a large and valuable
community.
Then you'll need to understand influencer marketing
and how to target them.
Even with that, you'll need some paid-for social media
to kickstart each campaign

.
Customer Service
Used properly, social media can be a very effective
way of monitoring, measuring then improving your
levels of customer satisfaction. Sentiment analysis. http://hubnaij..com.ng/2017/01/why-should-you-use-social-media-for.html?m=1