Flow with some type of buffer and limit

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Posted on by garce

I run into this problem that got me thinking about a solution

Problem

I have a very simple flow that every time a meeting invite was created, it will forward it

I noticed that suddenly one update was made and generated thousands of forwarded emails. It cluttered my inbox and generated several thousand pending "Running Flows". I cleared that problem already. Not fun. I don't know what caused this, the script was working well before.

Solution thinking

I was thinking that it would have been awesome to prevent that from happening and limit the number of forwards per minute. I can not think that I would receive more than 10 per hours for example. So I would like the flow to turn off if I get there. I don't mind if the invites are kept in batches and only forward every 1 hour.

Appreciate any tips on how to go about this or some other way to aleviate something like this happening

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RobElliott 10,420 Super User 2026 Season 1 on at

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@garce I don't think there's any way to do that. If the flow was working before then you need to look at the runs and try to work out why it has run thousands of times. Sorry, not a solution.

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garce 26 on at

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As for the first problem it appears to be a documented issue with power automate when meeting is created, modified, deleted ... etc
I tried a mitigation strategy
1. Set concurrency to 1
2. Added a delay of 60 seconds at the end

It was working fine and then again. Luckily this time the issues was contained and I was able to delete those. I decided to not use that function since it is problematic. Now using another borrowed flow that runs with a set frequency

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