How to send automated response back to the leads response
Some of the leads may respond back agree to meet or interested to proceed further and you may want to send a reply immeditely with your shared calender. So the lead can book the meeting.
You would see the Plan that you are subscribed to under Setting->Plan.
There are monthly and yearly plans. Based on your subscribed plan you would be allowed to add those many leads in that period.
You can always change the plan from same place.