Why can't the app service plan

Andrew Duffy 20

I have an azure app service in Region X, running windows and in resource group Y

I have a new app service plan in Region X, running windows and in resource group Y I moved the app service over to the same resource group (Y) as the new app service plan. Fine. Done. Now when I go to move the app service to the new app service plan, the "Change App Service" plan screen doesn't show the new app service plan in the drop down, it's only showing app service plans which are in the old resource group. Why? Your docs say this will work

Your docs say
"In brief, all plans created with the same resource group, region combination and operating system are deployed into the same webspace"

VenkateshDodda-MSFT 19,646 Reputation points Microsoft Employee

2024-02-13T11:27:03.0633333+00:00

Hello @Andrew Duffy ,
I hope the answer provided by @TP is helpful. Please let me know if you have any further queries.

Please accept as Yes if the answer provided is useful, so that you can help others in the community looking for remediation for similar issues.

1 answer

TP 83,971 Reputation points

2024-02-09T03:02:07.05+00:00

Hi Andrew,

Changing the resource group doesn't change the underlying webspace. The app service was deployed into a webspace when it created, and this can't be changed afterwards. That explains why you don't see the App Service plan in the list.

Above note from this documentation page.

Please click Accept Answer and upvote if the above was helpful.

Thanks.

-TP
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Andrew Duffy 20 Reputation points

2024-02-09T03:10:52.98+00:00

Docs indicate that it's the app service plan that is created in a webspace but now you're saying it's the app service itself?

Andrew Duffy 20 Reputation points

2024-02-09T03:14:03.65+00:00

Also what you've highlighted in red... I'm not trying to move the webspace for a plan. I've created a new plan and docs say it should go into same webspace as the old plan if I use the same region, OS and resource group.

Seems like docs are messed up.

TP 83,971 Reputation points

2024-02-09T03:24:52.6333333+00:00

When I said app service above I meant app service and its app service plan.

An app service is deployed into an app service plan, which is deployed into a webspace. You can't change your app service to an app service plan that is located in a different webspace.

Does that make sense?

Andrew Duffy 20 Reputation points

2024-02-09T03:54:36.9633333+00:00

Yes sort of.... but docs give the impression that a new app service plan will go into the same webspace as the old one if certain condition are true. In which case I'd be able to move the app service to the new app service plan. But this is not the case.

TP 83,971 Reputation points

2024-02-09T04:13:52.6433333+00:00

If you create a new app service plan in same region/resource group/operating system it should go into the same webspace as others that were created in that same combination. I've done this many times and can verify it works.

I bolded the word created because it is critical.

Are you not seeing that?

Andrew Duffy 20 Reputation points

2024-02-09T04:23:33.33+00:00

I can see the bolding now.. it's only very slight on my monitor. Doesn't work for me..... something to do with the azure app service having to move resource groups i guess.

TP 83,971 Reputation points

2024-02-09T04:54:39.4033333+00:00

If you give me a list of what you currently have, and explain the end result you want to accomplish, I can tell you how to get there. For example, list web apps, regions, resource groups, app service plans, SKU for each. If you moved something to a different resource group after it was created that is important since the original resource group is what matters.

It might help if you detail the reason why you want to make the change(s). For example, you are trying to consolidate the total number of app service plans you have, or perhaps you are trying to switch to a specific Premium SKU and it isn't giving you the option.

Bottom line there are cases where you need to re-create an app so that you can have it in a different app service plan (and underlying webspace) than it is in now.

NOTE: Feel free to obfuscate names of regions/resource groups/apps/etc. if that is your preference. Main thing is to be consistent.
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Why can't the app service plan

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