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Frequent Visitor

Limits of Flow - Out of call volume quota.

Question about the "out of call volume quota" on a flow I'm using. It's a simple flow that initiates an email when a user submits a form on a powerapp. I just sent 30 tests and the 23rd and 26th ones failed due to the quota error. Is the limit on these emails per user?  Or is it a daily limit for my flow for all users?

Community Support
Community Support

Hi @shemcke,


Could you please share more details about the error message (under Microsoft Flow running details page)?

Because different connectors would have its own volume quota, and if that is running out, under the special Action, it will remind you the message you mentioned.


If here it is Flow Quota, and you have the Flow free plan, then you could check the Flow quota by 

lick or tap Activity to show logs of your runs, along with notifications and failures.


If you're not on a free plan or a trial plan, runs are pooled across all users in your organization. We're working on features to expose available quota and usage across an organization.

For more information about Flow quota usage, please see:

Billing and metering questions


If you have any further questions, please feel free to post back.



Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi Michael,


I have the Flow for Office 365 (free) plan.  I see that includes 2000 runs per month - is there a daily limit?  Why would my 23rd and 26th runs fail (from my 30 tests).


The fail notice is as follows:


Failure summary



Visit our support page to see if there are any known service outages that are impacting your flow.

  • Action 'Send email' failed

    Fix It

    If this error was temporary, you can try resubmitting the run and the issue may have been resolved.

    Error type

    This action failed because of an error in the connector.

    Error Details

    The error message from the service is below. This maybe useful for support:

    Out of call volume quota. Quota will be replenished in 01:58:00.


Hi @shemcke,


Your experience make me thinking there should be a quota limits for the Send Email Action in a limited time.

Would you please share a screenshot of the problematic Action?

Which Connector you used to send the Email?

The quota usage should be mentioned in the corresponding mail service REST API document.




Community Support Team _ Michael Shao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi Michael,


The connector is "Mail".  And here are screen shots of the failure notifications.




Does that help figure this out?




Frequent Visitor


I'm experiencing exactly same issue. @v-micsh-msft are there any updates on that?

Flow fails only when reaches 'Send email notification' action. I'm wondering what is the quota limit, where can I chek it and is there a way to extend it? Also, is this quota per user or for the whole organisation? 



Not applicable

I am also hitting the Quota on an Enterprise account. I'm beign tasked with creating an auto emailer that will email about 2000 people a day with business stats.


If I get blocked after sending 5 emails my company will probably abandon Flow entirely for another option...

Hi @Anonymous, 

If I understand correctly you're concerned about hitting a quota.


There may be a misunderstanding here. The original poster had hit a quota not because of flow, but because of the connector itself and not the number of flow runs.


You may want to consider placing a delay between each of the emails sent out. 


There may be some best practices to try here. Can you share more about the flow you have set up so I can recommend some resources?

Microsoft Employee
Advocate II
Advocate II

The thread is 2y old, but for anyone running into the same issue (as myslef today), mentioned Mail connector has limit of 100 calls only per 24hrs per connection. 

I was not aware of this limit, but it's mentioned also in documentation
Compared to O365 Outlook connector which has 900 calls per 60 seconds is this one really limiting.

Hi. Is there a workaround for the limits of using the Mail send notification connector? I’m on an enterprise account and we process over 100 easily a day form requests that need to be emailed out to a variety of recipients.
I am currently using my own O365 email just to get these emails sent but it causes confusion since my man shows as the sender instead of the person that submitted the form.
I’ve also tried using a shared mailbox but that shows as [me] on the behalf of [shared email]...
This is frustrating and we may decide to something else if this isn’t resolved.

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