No configuration change, but suddenly alert "The managed domain was last backed up ...."

Question

No configuration change, but suddenly alert "The managed domain was last backed up ...."

Paul Rolland 80

Hello,

My Azure configuration has not been changed for a long time, but yesterday, I've received an alert message indicating that the last backup was 6 days ago.
The alert is point to the article
https://learn.microsoft.com/en-us/entra/identity/domain-services/troubleshoot-alerts#aadds501-a-backup-has-not-been-taken-in-a-while
but I can't find any useful information that could explain why this is suddenly happening, but most important, what to do fix it.

Anyone having some ideas/tips to share ?

Thanks,

Paul

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Charron, Christophe 25 Reputation points

2024-10-21T08:56:29.56+00:00

I have the same issue got this exact error on saturday saying my back up is a week old (13.10)
Mark Selley 0 Reputation points

2024-10-21T20:46:17.04+00:00

Same problem for me started on the same day, cant be a coincidence "The managed domain was last backed up on Sun, 13 Oct 2024 20:09:59 UTC."

8 answers

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This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
Charron, Christophe 25 Reputation points

2024-10-21T08:56:29.56+00:00

I have the same issue got this exact error on saturday saying my back up is a week old (13.10)
Mark Selley 0 Reputation points

2024-10-21T20:46:17.04+00:00

Same problem for me started on the same day, cant be a coincidence "The managed domain was last backed up on Sun, 13 Oct 2024 20:09:59 UTC."

Answer 1

@Paul Rolland

Thank you for posting this in Microsoft Q&A.

As I understand you are getting an alert in Azure AD domain services with an error "AADDS501: The managed domain has not been backed up for a long time".

We have this issue posted by multiple other customers as well. There was an outage in our West Europe region backup tenant due to which this alert was triggered to multiple other clients as well.

Currently this issue is resolved at our backend.

Can you confirm if you are still getting this alert in your tenant?

If you are not getting this alert anymore, please "Accept the answer" if the information helped you. This will help us and others in the community as well.

Answer 2

SUNOJ KUMAR YELURU 15,491 MVP Volunteer Moderator

Hello @Paul Rolland

Thanks for using Q and A forum.

This is service health alerts related to Microsoft Entra ID

Sign in to the Microsoft Entra admin center as a Global Administrator.
Search for and select Microsoft Entra Domain Services.
Select your managed domain, such as aaddscontoso.com.
On the left-hand side of the Domain Services resource window, select Health. The following example screenshot shows a healthy managed domain and the status of the last backup and Microsoft Entra synchronization:

If this answers your query, do click Accept Answer and Up-Vote for the same. And, if you have any further query do let us know.

Paul Rolland 80 Reputation points

2024-10-20T13:02:15.1033333+00:00

This is exactly the instruction to have access to the Warning, but that doesn't explain why and more important what to do:

And if I click the link, the displayed information is:

And running the diagnostic goes to a :

So what's going on ?
Thomas Mende 5 Reputation points

2024-10-21T06:38:38.1733333+00:00

We have the same problem in our Microsoft Entra Domain Services. We have not made any changes to Microsoft Entra Domain Services in the last few weeks. The date is also correct, maybe an Azure problem at Microsoft?
Charron, Christophe 25 Reputation points

2024-10-21T08:58:26.6733333+00:00

Same for me and even at the same date so something should have happen Microsoft side...
Mark Selley 0 Reputation points

2024-10-21T20:47:34.5033333+00:00

Same here definitely a Microsoft issue or breaking change

Answer 3

Rick Braakman 20

We are experiencing the same problem since the 15th of october. We are managing several tenants with managed domains and suddenly without any configuration change 70% of our domains are now unhealthy because the backup didnt run for a while resulting in: AADDS501. This has to be an issue on the Microsoft backend.

Thomas Mende 5 Reputation points

2024-10-21T07:41:31.84+00:00

@SUNOJ KUMAR YELURU

Can you say more about this? Several tenants with the same problem. Is it the Microsoft backend?
Thomas Mende 5 Reputation points

2024-10-21T07:42:49.06+00:00

double post ... sry.
Charron, Christophe 25 Reputation points

2024-10-21T09:10:47.48+00:00

Same issue as you, and at the exact same timeframe. It should definetly be something their side.
Mark Selley 0 Reputation points

2024-10-21T20:47:59.7333333+00:00

Same here definitely a Microsoft issue or breaking change
Charron, Christophe 25 Reputation points

2024-10-22T09:56:33.4566667+00:00

It came back resolved for me today ;) so they are probably on the way of fixing this :)
Paul Rolland 80 Reputation points

2024-10-22T14:31:41+00:00

Yeah, same here ! I've just checked and I have that so nice message on my screen:

I definetely need to be more patient next time I receive an alert that seems to have no valid reason to be there.

Thanks to all of you who responded, and I hope the issue will get automagically fixed for all of you who expressed a "me too" voice.

Paul
Paul Rolland 80 Reputation points

2024-10-22T14:40:28.5133333+00:00

Fixed here too.... and no action done, so that definitely was an MS issue.

Thanks to all of you, and I hope it'll get fixed for all the "me too" who commented.

Regards,

Paul

Answer 4

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Answer 5

Peterkoning 0

Hello @Paul Rolland , I think Microsoft has split up the ADDS services in various SKU's. Standard, Enterprise and Premium (not sure what the difference is between the last two). When you are on standard, high availability is not available and you would need to move from standard to enterprise SKU for backing up the managed domain. User's image

This can be set in Microsoft Entra Domain Services page -> SKU menu option.

User's image

My last backup was on the 14th of October and received message from MS on the 20th of October. It looks to me another way of earning some extra money for their ADDS service being more resilient. They are also going to do this beginning March 31st 2025 for all Azure App Service Web apps. DR capabilities will not be standard available.

Charron, Christophe 25 Reputation points

2024-10-21T11:36:30.2933333+00:00

I've ask the sales team about this change and he answered :
Based on the latest updates, there haven't been any specific changes announced in mid-October 2024 regarding the "high availability" service moving from the Standard SKU to the Enterprise SKU.
So not sure about the SKU evolving
Paul Rolland 80 Reputation points

2024-10-22T00:00:02.6266667+00:00

That would be unusual from MS to make such a change without sending prior notification messages. And even if I hadn't seen such messages, there are many other people here who would have ignored them too ?
Also, Backups are not Replicas (at least not for me).
And if the "answer" was to change the SKU (and five more bucks to MS), I guess they would have made sure that you are directed to the "correct" page explaining how to "fix" the error ;)

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No configuration change, but suddenly alert "The managed domain was last backed up ...."

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