What is Automation with Instagram?

You can trigger the creation of records when a user leaves a comment on your Instagram page.
With automation rules, you can automatically create contact, lead, and case records in the CRM.

How?
For instance, if you receive a comment that says, How do I buy this product?, you can assume this to be a lead for your business and create a lead record for the user.
Additionally, you can specify tags or keywords that must be present in the comment or reply. For instance, the tag is want to subscribe, and a user posts a comment that matches the tag. You can assume them to be a lead and trigger the creation of a lead record. 
Follow these steps to add a rule: 

1. Log in to your CRM account.
2. Click the Main Menu.
3. Go to Marketing.
4. Look for Campaigns.
5. Select Social. You will be directed to the Social module.
6. Click Manage Accounts on the bottom left corner of the screen. You will be directed to the Social Settings window.
7. Click Instagram under automation on the left-hand side.
8. Click on +Add Rule.
9. Enter or select the following information:
   1. Name - Provide a title for the rule.
   2. Select trigger - Choose when the record must be created (on receiving a comment).
   3. Contains Keywords - Enter the keywords that must be present in the comment. 
   4. Choose action - Choose which record to create. 
10. Click Save.

With this, you have successfully set Automation settings to your Instagram account.