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VBO: Failed to synchronize item changes in folder: TeamsMessagesData.

regnor
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Just a quick info:

It looks like there’s currently an issue with the mailbox backup in Veeam Backup for Office 365, which could randomly happen for a small amount of mailboxes.

Processing mailbox XYZ failed with error: Failed to synchronize item changes in folder: TeamsMessagesData.. An internal server error occurred. The operation failed., ICS synchronization failed.

The backup for most of the mailboxes is successful, but some can fail with the error message above.

Veeam is aware of this problem; they’re already working on it and are also in contact with Microsoft.

For further information you can also monitor this R&D forums post: https://forums.veeam.com/veeam-backup-for-office-365-f47/failed-to-synchronize-item-changes-in-folder-teamsmessagesdata-t77925.html

I will update this post as soon as there’s something new.

Update:

Veeam has implemented a workaround for this issue with the following patch: https://www.veeam.com/kb4235

Max M. | Systems Engineer @Veeam | VMCE/VMCA | VeeaMVP 2023 | former Legend & Vanguard

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Nico Losschaert
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Thx @regnor for sharing this. Why does MS changes all the time things and breaks things with it :thinking: ?

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Mildur
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Yes thanks for sharing and will keep an eye on this one.

Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 7* | Veeam Legend 4* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
Mildur
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Nico Losschaert wrote:

Thx @regnor for sharing this. Why does MS changes all the time things and breaks things with it :thinking: ?

@Nico Losschaert 


That will always be an issue. Between my colleagues, this is already a running gag. If something is not working, we are telling us, something must have changed again in the cloud 😅

 

I see this as the greatest challenge for all third party developers. Keeping up with Microsoft Changes. 

 

Product Management Analyst @ Veeam Software
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Mildur wrote:
Nico Losschaert wrote:

Thx @regnor for sharing this. Why does MS changes all the time things and breaks things with it :thinking: ?

@Nico Losschaert


That will always be an issue. Between my colleagues, this is already a running gag. If something is not working, we are telling us, something must have changed again in the cloud 😅

 

I see this as the greatest challenge for all third party developers. Keeping up with Microsoft Changes. 

 

Indeed @Mildur :sweat_smile: ! Thx for your feedback.

#Veeam Legend 5* | VMCA 3* | VMCE 4* | VMTSP+ 2* | VMSP 2* | DCIE 2* | Loves Best Practices | Twitter : @NLosschaert
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regnor
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  • November 27, 2021
Nico Losschaert wrote:

Thx @regnor for sharing this. Why does MS changes all the time things and breaks things with it :thinking: ?

Perhaps because predictability, stability and quality aren't innovative anymore? 😉🤣

Max M. | Systems Engineer @Veeam | VMCE/VMCA | VeeaMVP 2023 | former Legend & Vanguard
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regnor
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  • December 9, 2021

There is now a private fix available. This doesn’t fix the iusse, but excludes the TeamsMessagesData folder, if an error occurs, and backups the rest of the mailbox. You can get the fix from Veeam Support.

Max M. | Systems Engineer @Veeam | VMCE/VMCA | VeeaMVP 2023 | former Legend & Vanguard
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regnor wrote:

There is now a private fix available. This doesn’t fix the isse, but excludes the TeamsMessagesData folder, if an error occures, and backups the rest of the mailbox. You can get the fix from Veeam Support.

Thanks @regnor for the information.

Product Management Analyst @ Veeam Software
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regnor wrote:

There is now a private fix available. This doesn’t fix the iusse, but excludes the TeamsMessagesData folder, if an error occurs, and backups the rest of the mailbox. You can get the fix from Veeam Support.

Thanks for sharing.

Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 7* | Veeam Legend 4* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
N
regnor wrote:

There is now a private fix available. This doesn’t fix the iusse, but excludes the TeamsMessagesData folder, if an error occurs, and backups the rest of the mailbox. You can get the fix from Veeam Support.

Hi! do you have the number or something? thks!

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regnor
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  • December 9, 2021
nicolasf1979 wrote:
regnor wrote:

There is now a private fix available. This doesn’t fix the iusse, but excludes the TeamsMessagesData folder, if an error occurs, and backups the rest of the mailbox. You can get the fix from Veeam Support.

Hi! do you have the number or something? thks!

To answer it here in the topic; I’ve just answered via PN :wink:

Max M. | Systems Engineer @Veeam | VMCE/VMCA | VeeaMVP 2023 | former Legend & Vanguard
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marcofabbri
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  • December 10, 2021
regnor wrote:

There is now a private fix available. This doesn’t fix the iusse, but excludes the TeamsMessagesData folder, if an error occurs, and backups the rest of the mailbox. You can get the fix from Veeam Support.

Nice to know. Thanks!

 

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regnor
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  • December 20, 2021

There's a new CU available for VBO, which also contains the hotfix for this issue.

https://www.veeam.com/kb4235

Max M. | Systems Engineer @Veeam | VMCE/VMCA | VeeaMVP 2023 | former Legend & Vanguard
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