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What actually happens when you exceed the flow limits?

Hi everyone,


Microsoft have provided plenety of information as to what teh configuration and throughput limits for flow are in their Flow Limits and Configuration doc , however they dont say what to expect when these things are exceeded. From some searching poeople generally just assume the end result will be throttling but that the flows 'should' run and not be cancled or fail.


Does anyone know if there is an offical response from MS to confirm this is the case?

I also have a specific concern. I have recently completed a very large and complicated flow which has 420 Actions. They dont all run all the time as there is a lot of branching depending on approval results and other inputs that mean different systems are updated.

In the documented 'Definition Limits' (for a single fow) it states: 'Actions per workflow: 250'
Even with the branching I am probably exceeding this. 

In testing my flows run to completion, there are sometimes longer delays than others when the flow is running but it does get there. 

If anyone has any advice and or experience with reaching/breaching the limits I woudl love to hear it. 

FYI - I am going to refector my flow, probably with some combination of child flows and implementing Azure functions for some of it too. However this wont be before tomorrow.

Thank you in advance


Community Support
Community Support


Hi @BenCutler ,


For these restrictions listed, does it has an impact on the configuration and execution of your current Flow? I'm afraid I haven't done a similar test, so there's no way to confirm how such a limit will give feedback.


You could try to build Flow first according to your needs. I think if the limit is exceeded, Flow will display the corresponding prompt or display error message in Flow run history to indicate the relevant restrictions.


I have encountered a similar limitation myself. After creating more than 600 Flows in the same environment, when I continue to create a new Flow, I will get a message that reminds you to exceed the limit.


According to your description, you added 420 actions, Flow can still be created successfully, I think some of the nested actions may be determined as a single action.


Best Regards,

Community Support Team _ Barry
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