In short, there is a way to replace your current chat/text system and implement messenger (FBM).
Not everyone has Facebook and not everyone that has Facebook has or uses messenger (it is a separate download for mobile devices) but the advantages of using FBM could be enormous.
For one you will have some knowledge of who is that you are communicating with, it is unclear at this time what customers personal information FBM will share with the business. However what I’m more excited about is the global customer profile data FBM will collect and how this will help you create very targeted campaigns in the future using FB marketing tools.
Imagine how different your FB would be if you had full consumer records of all chat website interactions for the last 4 years?
http://www.zdnet.com/article/facebook-extends-messenger-capabilities-to-business-websites/