Hi @prasaddjoshi ,
Each time one item is updated then the flow is triggered one time.
Every time one user click on a button that will trigger a flow, it will count one time run.
For your reference:
Why did I run out of runs when my flow only ran a few times?
Certain flows may run more frequently than you expect. For example, you might create a flow that sends you a push notification whenever your manager sends you an email. That flow must run every time you get an email (from anyone) because the flow must check whether the email came from your manager. This action counts as a run.
You can work around this issue by putting all the filtering you need into the trigger. In the push notification example, expand the Advanced Options menu, and then provide your manager's email address in the From field.
Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.