Maintain control of your Microsoft 365 data
Post Reply
JerrySeltzer
Novice
Posts: 9
Liked: never
Joined: Aug 08, 2017 4:53 pm
Full Name: Jerry Seltzer
Contact:

Public Folder backup error

Post by JerrySeltzer »

For the past week, backups have been failing for the public folders mailbox of one of our tenants. The mailbox is setup with a company contacts folder with 5 nested contacts folders by type and 3 independent email based folders. The errors are always occurring on one of the contacts folder (although it varies which one on different runs of the job). Below is a sample of the errors in the log (time stamps removed for easier reading).

Exchange Web Services error code: ErrorInternalServerError
85 (888) Error: Failed to synchronize item changes in folder
(888) Type: Veeam.Ews.Internal.ExServerCodeException
Stack:
at Veeam.Ews.ExError.Throw(ExServerCodeException error, String format, Object[] args)
at Veeam.Ews.ExError.Catch(Action action, String format, Object[] args)
at Veeam.Ews.ExError.Catch[T](Func`1 func, String format, Object[] args)
at Veeam.Ews.ExItemSyncer.GetChanges(String folderId, String folderName, String syncState, Int32 maxItems, IReadOnlyDictionary`2 props)
at Veeam.Archiver.Source.Exchange.SyncChanges.TryGetChanges(IMailboxContext bind, String folderId, String folderName, Byte[] cookieIn, CancellationToken cancel, TimeSpan& elapsed)
at Veeam.Archiver.Source.Exchange.SyncChanges.<>c__DisplayClass18_0.<GetChanges>b__0()
at Veeam.Ews.Retry.FolderRetry.<>c__DisplayClass29_0`1.<Process>b__0()
at Veeam.Ews.Retry.FolderRetry.Process(Action action)
85 (888) Error: An internal server error occurred. The operation failed., IdAndSession.MailboxSession: session is not IMailboxSession
85 (888) Type: Veeam.Ews.Internal.ExServerCodeException
85 (888) Stack:
85 (888) at Veeam.Ews.Internal.ResponseMessageTypeExtension.ThrowIfError(ResponseMessageType item)
at Veeam.Ews.ExItemSyncer.GetData(SyncFolderItemsType syncType)
at Veeam.Ews.ExError.<>c__DisplayClass7_0`1.<Catch>b__0()
at Veeam.Ews.ExError.Catch(Action action, String format, Object[] args)
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina »

Hi Jerry,

There're quite a few of the similar cases in our support now. It seems some changes occurred on the Microsoft side and our engineers are currently working on the ways to resolve it. Please open a support call and post its ID here, so that we could track this issue with accuracy and follow the investigation.

Thanks!
agrob
Veteran
Posts: 380
Liked: 48 times
Joined: Sep 05, 2011 1:31 pm
Full Name: Andre
Contact:

Re: Public Folder backup error

Post by agrob »

good day, is this similar to this error we receive since about 2 days on the public folder backup?

Processing mailbox publicfoldermbx@tenant.onmicrosoft.com failed with error: Failed to synchronize item changes in folder: IPM_SUBTREE.. An internal server error occurred. The operation failed., IdAndSession.MailboxSession: session is not IMailboxSession

Thanks
Funki_sahib
Novice
Posts: 3
Liked: never
Joined: Dec 13, 2018 9:47 am
Contact:

Re: Public Folder backup error

Post by Funki_sahib »

Hello,

we receive this error since Monday when the sheduled Backup for Public Folder is running. After 3 min the Job quit with an Error:
13.12.2018 10:38:43 :: Processing mailbox PublicFolderFG_xxx@company.onmicrosoft.com failed with error: Failed to synchronize item changes in folder: Eingang.. An internal server error occurred. The operation failed., IdAndSession.MailboxSession: session is not IMailboxSession :: 0:03:22

normal Backup for Mailbox, OneDrive and SharePoint is not affected.
Is this the same Problem on which you are working now?
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina »

Hi Andre,

Yes, it seems to be exactly the same issue. Please open a support case and share its ID here.
Thanks!
agrob
Veteran
Posts: 380
Liked: 48 times
Joined: Sep 05, 2011 1:31 pm
Full Name: Andre
Contact:

Re: Public Folder backup error

Post by agrob »

Hi Polina

Case ID is #03325441
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina »

@Funki_sahib,

Likewise, please contact our support team and share your case ID in this thread (the same issue most likely).
And welcome to the Veeam community!
agrob
Veteran
Posts: 380
Liked: 48 times
Joined: Sep 05, 2011 1:31 pm
Full Name: Andre
Contact:

Re: Public Folder backup error

Post by agrob »

Got first Feedback from Support. They are working on it, seems like an issue on O365 EWS which affects every 3rd party software...
jbcap
Influencer
Posts: 18
Liked: never
Joined: May 24, 2018 4:12 am
Full Name: Jim Bell
Contact:

Re: Public Folder backup error

Post by jbcap »

Hi,

We have the same problem, case: 03325135
Funki_sahib
Novice
Posts: 3
Liked: never
Joined: Dec 13, 2018 9:47 am
Contact:

Re: Public Folder backup error

Post by Funki_sahib »

Case # 03325420
jamesm111
Lurker
Posts: 2
Liked: never
Joined: Jun 16, 2017 7:54 am
Full Name: James Martin
Contact:

Re: Public Folder backup error

Post by jamesm111 »

We have the same issue, so commenting here to subscribe to updates.
m.novelli
Veeam ProPartner
Posts: 504
Liked: 84 times
Joined: Dec 29, 2009 12:48 pm
Full Name: Marco Novelli
Location: Asti - Italy
Contact:

Re: Public Folder backup error

Post by m.novelli »

Same to me, the issue raised for a couple of customers

Ciao

Marco
cdlane
Enthusiast
Posts: 53
Liked: 3 times
Joined: Aug 09, 2015 5:48 pm
Full Name: Chris Lane
Contact:

Re: Public Folder backup error

Post by cdlane »

Case #: 03329140
blanchouins
Lurker
Posts: 1
Liked: never
Joined: Dec 17, 2018 8:29 am
Contact:

Re: Public Folder backup error

Post by blanchouins »

Same problem for me, case 03329184

regards,
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina » 1 person likes this post

Everyone,

Our QC team has confirmed that the issue is caused by some changes on the Microsoft side. We're researching the ways to fix the problem, however, at the moment there's not much that we can do. As soon as I get any updates, I'll post them here.

Thanks!
sbk
Enthusiast
Posts: 32
Liked: 2 times
Joined: Apr 06, 2017 2:03 pm
Full Name: Shawn Krawczyk
Contact:

Re: Public Folder backup error

Post by sbk »

Same error. Case number: 03330296
s2dt
Service Provider
Posts: 5
Liked: never
Joined: Feb 06, 2018 6:08 am
Full Name: Sven Schaffranneck
Contact:

Re: Public Folder backup error

Post by s2dt »

Same error. Case #03330806
rockaut
Service Provider
Posts: 4
Liked: 2 times
Joined: Nov 14, 2018 3:19 pm
Full Name: Markus Fischbacher
Contact:

Re: Public Folder backup error

Post by rockaut »

Hello there,

we have the same error with two of our tenants - case #03331146 .
One of them is missing a lot of items since the first error occurrence too. Not saying that veeam error has deleted those but maybe there's coincidence?
Renaud
Service Provider
Posts: 5
Liked: never
Joined: Dec 18, 2018 11:10 am
Full Name: Renaud
Contact:

Re: Public Folder backup error

Post by Renaud »

Same here on public folders:
Processing mailbox ****@*****.onmicrosoft.com failed with error: Failed to synchronize item changes in folder: Contacts.. An internal server error occurred. The operation failed., IdAndSession.MailboxSession: session is not IMailboxSession
Case #03323944
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina »

Latest updates on this: We're in touch with MS and investigating the possible changes in parameters which potentially can cause the synchronization problems.
Stay tuned!
coreypenford

Re: Public Folder backup error

Post by coreypenford »

Same issue
Case #03331575
S_Matasic
Service Provider
Posts: 23
Liked: 12 times
Joined: Feb 15, 2016 1:41 pm
Full Name: Steve Matasic
Contact:

Re: Public Folder backup error

Post by S_Matasic »

We are seeing this with a few of our tenants as well. Case 03331885
Renaud
Service Provider
Posts: 5
Liked: never
Joined: Dec 18, 2018 11:10 am
Full Name: Renaud
Contact:

Re: Public Folder backup error

Post by Renaud »

Seems to be fixed, no more error on my side.
S_Matasic
Service Provider
Posts: 23
Liked: 12 times
Joined: Feb 15, 2016 1:41 pm
Full Name: Steve Matasic
Contact:

Re: Public Folder backup error

Post by S_Matasic » 1 person likes this post

I had three jobs getting the error. Two seemed to be resolved when running on the 19th. Another that ran on the 18th still had the error. I am running the new job now to see if it errors.

EDIT:
I checked the job and it appears to have been resolved as it processed the public folders without error now.
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina »

Renaud, Steve,

Thank you for these updates. It seems that the issue is going to be completely resolved within the next few days; in the meanwhile, our engineers are continuing their research together with MS specialists.
agrob
Veteran
Posts: 380
Liked: 48 times
Joined: Sep 05, 2011 1:31 pm
Full Name: Andre
Contact:

Re: Public Folder backup error

Post by agrob »

It looks like MS changed something again. Last backup was successful, no errors at the moment
coreypenford

Re: Public Folder backup error

Post by coreypenford »

I'm still getting an error on our job
12/20/2018 9:05:01 AM :: Processing mailbox **************** failed with error: Failed to synchronize item changes in folder: IPM_SUBTREE.. An internal server error occurred. The operation failed., IdAndSession.MailboxSession: session is not IMailboxSession :: 0:00:57
agrob
Veteran
Posts: 380
Liked: 48 times
Joined: Sep 05, 2011 1:31 pm
Full Name: Andre
Contact:

Re: Public Folder backup error

Post by agrob »

maybe the changes are not deployed to all tenants / infrastructure at the moment. i would suggest to wait one or two days...
coreypenford

Re: Public Folder backup error

Post by coreypenford »

Can confirm that it is now working for us again. Cheers
Polina
Veeam Software
Posts: 2939
Liked: 681 times
Joined: Oct 21, 2011 11:22 am
Full Name: Polina Vasileva
Contact:

Re: Public Folder backup error

Post by Polina »

According to our engineers, Microsoft has applied some fixes on their side and backup should work as expected without any issues.

If you still have any jobs failing with the "internal server error" though, please do let us know.
Post Reply

Who is online

Users browsing this forum: No registered users and 13 guests