What actions are counted in the API rate limit?

I am having You have exceeded the daily rate limit (100)
I was informed that daily rate is per user in my account.

In my web, I am using two endpoints to enter the meeting.

  1. ‘/oauth/token?grant_type=account_credentials&account_id=’
  2. ‘/users/’+user_id+‘/meetings’

Description
User that exceeded daily rate that day had 6 meetings, and each meeting had 6 participants including the host.
How can there be over 100 api calls?

My question is

  1. is oauth endpoint counted as user’s daily rate?
    => There is no information related to the user, so it seems that counting per user will not be possible.

  2. How many times will it be counted with ‘/users/’+user_id+‘/meetings’?
    => there was 6 meetings x 6 participants

  3. I’d like to know if there are any factors in the app that could impact the API rate, especially related to meetings
    => If you calculate it this way, the count will fall far below the API rate limit of 100 calls. What could potentially affect the API rate in such cases?

When a meeting starts, we automatically record the meeting, and the host may stop and restart the recording during the meeting. Do all of these actions impact the API rate? For example, changing participant names or modifying the meeting room name—do these also affect the API rate?

There is the way to track down remaining api rate counts in header of response.

But this is not the answer for my question…