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Within a given Azure "pay-as-you-go" subscription, I currently have a single App Service Plan which includes multiple App Services; let's call them App Service 1, App Service 2, and App Service 3.

I have setup a single Azure Virtual Network which includes two subnets - let's call them Subnet A and Subnet B.

I am trying to assign App Service 1 and App Service 2 to Subnet A via the Azure Portal, ie:

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This works perfectly.

I then hop over to App Service 3 and attempt to assign it to Subnet B within that same virtual network; when I attempt to do so, I get the following error:

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("VNet configuration failed.: Adding this VNET would exceed the App Service Plan VNET limit of 1.")

I'm at a loss here as I only have a single VNET (with multiple sub-nets); is what I'm trying to do not possible, and the error message really should be informing me that all app services within a given app service plan can only be associated with a single sub-net? Or am I going about this the wrong way?

RMD
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1 Answers1

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Please check this link https://social.msdn.microsoft.com/Forums/en-US/a8b51183-d94b-48c9-9b6c-e6a4dbec9919/vnet-integration-limit-of-1?forum=azureappconfiguration The last comment by SamaraSoucy-MSFT seems to suggest there is one subnet per app service plan limit. The comment by Goofoff suggests a workaround. hope that helps

Guru Pasupathy
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  • That wasn't the answer I was hoping for, but after reading up more about the relationship between an App Service Plan and contained App Services, it now makes much more sense as to why a given App Service Plan can only support a single VNET / subnet. Your link helped me find additional information on this subject - many thanks! – RMD May 21 '20 at 02:25
  • Glad you found the link helpful. Cheers! – Guru Pasupathy May 21 '20 at 12:20
  • it seems the workaround doesn't work anymore – MolteNolte Nov 03 '21 at 15:57