How To Tag Your Conversations in Social Inbox
Tags are like badges or identifiers for each conversation. These not only help to sort the conversations but also provide analytical information about what type of interactions are most common on your page.
You can create intelligent tags and assign them to the conversations.
Scroll the left-most toolbar to the end to see the tags you had previously created. Click on any of them to load the conversation where the tag was placed.
How to Create New Tags
Take for example you have two tags, Bugs and Follow-up. If you want to search for messages from all customers who were experiencing a bug you need to follow up with, you can merge these two tags in settings and search all conversations from your business page.
Here's a gif to make things easier: