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Level: Powered On

Unable to add Flow (any) to Powerapp (any)

So, just a few days ago I could easily add Flows to my Powerapps.


However, since yesterday I cannot add any Flow to any Powerapps. 


I created the simplest possible Flow (called OC-Test):



and when I try to add it to the simple (new) PowerApp, I get "Registerring error":



This happens for every application and for every Flow.


I bought five "per app plan" licenses, maybe it has to do with it ?


Best Regards,



Dual Super User
Dual Super User

Re: Unable to add Flow (any) to Powerapp (any)

Hi @openclue 


Can you go to the PowerApps trigger on the flow and select the three dots, then select Peek Code. Make sure that all the variable that you have defined are of string type. Once that is done, save the flow and try to add it again in the canvas app.



Hope this Helps!


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Microsoft v-siky-msft

Re: Unable to add Flow (any) to Powerapp (any)


Generally, this issue is due to the wrong JSON definition in the flow. but that doesn't seem to be your case.

Could you create a new flow without any Variable and JSON action and try again?

Could you try to log out of the PowerApps and Flow, clear browser cache, and re-login them to check if the issue is fixed?






Level: Powered On

Re: Unable to add Flow (any) to Powerapp (any)

Hi @v-siky-msft ,


i have the same issue,


on every app (standalone or sharepoint integration) on every flow, and for more tenants.

I using Edge, Chrome, Mozila. All with the same error.


And almost every flow is used actually in some apps and they works, but cannot be added again in another app.



Level 8

Re: Unable to add Flow (any) to Powerapp (any)

This is probably not the solution in your case, but I will throw it in as I experienced what appears to be the same error randomly a while ago. I use two accounts (a generic service account for smooth transition if I leave and my own). I found that to add a flow to a PowerApps, you needed to be logged in as the same user that created the flow.

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